Vulnerability-Lookup

CVE-2026-45669 (GCVE-0-2026-45669)

Vulnerability from cvelistv5 – Published: 2026-06-12 12:51 – Updated: 2026-06-12 14:07

Title

Nuxt: Reflected XSS in `navigateTo()` external redirect

Summary

Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin. This issue has been patched in versions 3.21.6 and 4.4.6.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-12 14:03 UTC

CWE

CWE-83 - Improper Neutralization of Script in Attributes in a Web Page

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7637 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/nuxt/nuxt/security/advisories/…	x_refsource_CONFIRM
https://github.com/nuxt/nuxt/pull/35052	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
nuxt	nuxt	Affected: >= 3.4.3, < 3.21.6 Affected: >= 4.0.0-alpha.1, < 4.4.6	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-45669",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-12T14:03:21.230017Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-12T14:07:21.725Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "nuxt",
          "vendor": "nuxt",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.4.3, \u003c 3.21.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-alpha.1, \u003c 4.4.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a \u003cmeta http-equiv=\"refresh\"\u003e tag. The destination URL is only sanitized by replacing \" with %22, leaving \u003c, \u003e, \u0026, and \u0027 unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content=\"\u2026\" attribute and inject arbitrary HTML/JavaScript that executes under the application\u0027s origin. This issue has been patched in versions 3.21.6 and 4.4.6."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-83",
              "description": "CWE-83: Improper Neutralization of Script in Attributes in a Web Page",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-12T12:51:42.640Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
        },
        {
          "name": "https://github.com/nuxt/nuxt/pull/35052",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nuxt/nuxt/pull/35052"
        }
      ],
      "source": {
        "advisory": "GHSA-fx6j-w5w5-h468",
        "discovery": "UNKNOWN"
      },
      "title": "Nuxt: Reflected XSS in `navigateTo()` external redirect"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45669",
    "datePublished": "2026-06-12T12:51:42.640Z",
    "dateReserved": "2026-05-12T21:59:25.666Z",
    "dateUpdated": "2026-06-12T14:07:21.725Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45669",
      "date": "2026-10-15",
      "epss": "0.0028",
      "percentile": "0.19042"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "product": "nuxt",
                "vendor": "nuxt",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003e= 3.4.3, \u003c 3.21.6"
                  },
                  {
                    "status": "affected",
                    "version": "\u003e= 4.0.0-alpha.1, \u003c 4.4.6"
                  }
                ]
              }
            ],
            "source": "security-advisories@github.com"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "367FACB9-2766-48AE-84B6-BEECF2FD08B2",
                    "versionEndExcluding": "3.21.6",
                    "versionStartIncluding": "3.4.3",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "F81B0412-10CE-4EC4-A9CB-DAEC85C289A3",
                    "versionEndExcluding": "4.4.6",
                    "versionStartIncluding": "4.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a \u003cmeta http-equiv=\"refresh\"\u003e tag. The destination URL is only sanitized by replacing \" with %22, leaving \u003c, \u003e, \u0026, and \u0027 unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content=\"\u2026\" attribute and inject arbitrary HTML/JavaScript that executes under the application\u0027s origin. This issue has been patched in versions 3.21.6 and 4.4.6."
          }
        ],
        "id": "CVE-2026-45669",
        "lastModified": "2026-06-17T10:52:26.740",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.4,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "REQUIRED",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 2.5,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "cvssMetricV40": [
            {
              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "PASSIVE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "LOW",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
              },
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-45669",
                "options": [
                  {
                    "exploitation": "poc"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-12T14:03:21.230017Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-06-12T14:16:31.297",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Issue Tracking"
            ],
            "url": "https://github.com/nuxt/nuxt/pull/35052"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Exploit",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
          },
          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "tags": [
              "Exploit",
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-83"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-45669",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-06-12T14:03:21.230017Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-06-12T14:03:45.577Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "references": [
              {
                "tags": [
                  "exploit"
                ],
                "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "nuxt",
              "vendor": "nuxt",
              "versions": [
                {
                  "status": "affected",
                  "version": "\u003e= 3.4.3, \u003c 3.21.6"
                },
                {
                  "status": "affected",
                  "version": "\u003e= 4.0.0-alpha.1, \u003c 4.4.6"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a \u003cmeta http-equiv=\"refresh\"\u003e tag. The destination URL is only sanitized by replacing \" with %22, leaving \u003c, \u003e, \u0026, and \u0027 unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content=\"\u2026\" attribute and inject arbitrary HTML/JavaScript that executes under the application\u0027s origin. This issue has been patched in versions 3.21.6 and 4.4.6."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "attackComplexity": "LOW",
                "attackRequirements": "NONE",
                "attackVector": "NETWORK",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "privilegesRequired": "NONE",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "LOW",
                "subIntegrityImpact": "LOW",
                "userInteraction": "PASSIVE",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "LOW",
                "vulnIntegrityImpact": "LOW"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-83",
                  "description": "CWE-83: Improper Neutralization of Script in Attributes in a Web Page",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-12T12:51:42.640Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
            },
            {
              "name": "https://github.com/nuxt/nuxt/pull/35052",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/nuxt/nuxt/pull/35052"
            }
          ],
          "source": {
            "advisory": "GHSA-fx6j-w5w5-h468",
            "discovery": "UNKNOWN"
          },
          "title": "Nuxt: Reflected XSS in `navigateTo()` external redirect"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-45669",
        "datePublished": "2026-06-12T12:51:42.640Z",
        "dateReserved": "2026-05-12T21:59:25.666Z",
        "dateUpdated": "2026-06-12T14:07:21.725Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-45669

Vulnerability from fkie_nvd - Published: 2026-06-12 14:16 - Updated: 2026-06-17 10:52

Severity

5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/nuxt/nuxt/pull/35052	Issue Tracking
security-advisories@github.com	https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468	Exploit, Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468	Exploit, Patch, Vendor Advisory

Impacted products

	Vendor	Product	Version
	nuxt	nuxt	*
	nuxt	nuxt	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "nuxt",
          "vendor": "nuxt",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.4.3, \u003c 3.21.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 4.0.0-alpha.1, \u003c 4.4.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "367FACB9-2766-48AE-84B6-BEECF2FD08B2",
              "versionEndExcluding": "3.21.6",
              "versionStartIncluding": "3.4.3",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F81B0412-10CE-4EC4-A9CB-DAEC85C289A3",
              "versionEndExcluding": "4.4.6",
              "versionStartIncluding": "4.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a \u003cmeta http-equiv=\"refresh\"\u003e tag. The destination URL is only sanitized by replacing \" with %22, leaving \u003c, \u003e, \u0026, and \u0027 unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content=\"\u2026\" attribute and inject arbitrary HTML/JavaScript that executes under the application\u0027s origin. This issue has been patched in versions 3.21.6 and 4.4.6."
    }
  ],
  "id": "CVE-2026-45669",
  "lastModified": "2026-06-17T10:52:26.740",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45669",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-12T14:03:21.230017Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-12T14:16:31.297",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/nuxt/nuxt/pull/35052"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-83"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

GHSA-FX6J-W5W5-H468

Vulnerability from github – Published: 2026-05-19 15:49 – Updated: 2026-07-08 17:35

Summary

Nuxt: Reflected XSS in `navigateTo()` external redirect

Details

Summary

navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin.

This is a different root cause from CVE-2024-34343 (GHSA-vf6r-87q4-2vjf), which addressed javascript: protocol bypass. The issue here is triggered by any valid URL containing >.

Impact

Applications that pass user-controlled input to navigateTo(url, { external: true }) — typically via a ?next= / ?redirect= query parameter used for post-login or "return to" flows — are vulnerable to reflected cross-site scripting. The injected script runs in the context of the application's origin during the server-rendered redirect response, before the meta-refresh fires.

Details

In packages/nuxt/src/app/composables/router.ts, the SSR redirect path builds an HTML response body with only " percent-encoded in the destination URL:

const encodedLoc = location.replace(/"/g, '%22')
nuxtApp.ssrContext!['~renderResponse'] = {
status: sanitizeStatusCode(options?.redirectCode || 302, 302),
body: `<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0; url=${encodedLoc}"></head></html>`,
headers: { location: encodeURL(location, isExternalHost) },
}

The Location header is normalised through encodeURL() (which uses the URL constructor and correctly percent-encodes attribute-significant characters). The HTML body uses a narrower sanitiser. That mismatch is the root cause.

Proof of concept

Global middleware that forwards a query parameter to navigateTo:

// middleware/redirect.global.ts
export default defineNuxtRouteMiddleware((to) => {
const next = to.query.next as string | undefined
if (next) {
 return navigateTo(next, { external: true })
}
})

Request:

GET /?next=https://evil.example/x><img src=x onerror=alert(document.domain)>

Response body:

<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0; url=https://evil.example/x><img src=x onerror=alert(document.domain)>"></head></html>

The > after evil.example/x terminates the content="…" attribute, and the <img onerror> tag executes JavaScript in the application's origin before any redirect occurs.

Patches

Fixed in nuxt@4.4.6 and nuxt@3.21.6 by #35052. The fix percent-encodes the full set of HTML-attribute-significant characters (&, ", ', <, >) before interpolating the URL into the meta-refresh body

Workarounds

If you can't upgrade immediately, validate user-controlled URLs before passing them to navigateTo(url, { external: true }). At minimum, normalise through new URL(input).toString() and reject inputs containing < or > (a normalised URL with these characters is malformed and safe to refuse).

Severity

5.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.21.5"
      },
      "package": {
        "ecosystem": "npm",
        "name": "nuxt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.4.3"
            },
            {
              "fixed": "3.21.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 4.4.5"
      },
      "package": {
        "ecosystem": "npm",
        "name": "nuxt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0-alpha.1"
            },
            {
              "fixed": "4.4.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45669"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-83"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-19T15:49:25Z",
    "nvd_published_at": "2026-06-12T14:16:31Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n`navigateTo()` with `external: true` generates a server-side HTML redirect body containing a `\u003cmeta http-equiv=\"refresh\"\u003e` tag. The destination URL is only sanitized by replacing `\"` with `%22`, leaving `\u003c`, `\u003e`, `\u0026`, and `\u0027` unencoded. An attacker who can influence the URL passed to `navigateTo(url, { external: true })` can break out of the `content=\"\u2026\"` attribute and inject arbitrary HTML/JavaScript that executes under the application\u0027s origin.\n\nThis is a different root cause from CVE-2024-34343 (GHSA-vf6r-87q4-2vjf), which addressed `javascript:` protocol bypass. The issue here is triggered by any valid URL containing `\u003e`.\n\n### Impact\nApplications that pass user-controlled input to `navigateTo(url, { external: true })` \u2014 typically via a `?next=` / `?redirect=` query parameter used for post-login or \"return to\" flows \u2014 are vulnerable to reflected cross-site scripting. The injected script runs in the context of the application\u0027s origin during the server-rendered redirect response, before the meta-refresh fires.\n\n### Details\nIn `packages/nuxt/src/app/composables/router.ts`, the SSR redirect path builds an HTML response body with only `\"` percent-encoded in the destination URL:\n\n```ts\nconst encodedLoc = location.replace(/\"/g, \u0027%22\u0027)\nnuxtApp.ssrContext![\u0027~renderResponse\u0027] = {\nstatus: sanitizeStatusCode(options?.redirectCode || 302, 302),\nbody: `\u003c!DOCTYPE html\u003e\u003chtml\u003e\u003chead\u003e\u003cmeta http-equiv=\"refresh\" content=\"0; url=${encodedLoc}\"\u003e\u003c/head\u003e\u003c/html\u003e`,\nheaders: { location: encodeURL(location, isExternalHost) },\n}\n```\n\nThe `Location` header is normalised through `encodeURL()` (which uses the `URL` constructor and correctly percent-encodes attribute-significant characters). The HTML body uses a narrower sanitiser. That mismatch is the root cause.\n\n### Proof of concept\n\nGlobal middleware that forwards a query parameter to `navigateTo`:\n\n```ts\n// middleware/redirect.global.ts\nexport default defineNuxtRouteMiddleware((to) =\u003e {\nconst next = to.query.next as string | undefined\nif (next) {\n return navigateTo(next, { external: true })\n}\n})\n```\n\nRequest:\n\n```\nGET /?next=https://evil.example/x\u003e\u003cimg src=x onerror=alert(document.domain)\u003e\n```\n\nResponse body:\n\n```html\n\u003c!DOCTYPE html\u003e\u003chtml\u003e\u003chead\u003e\u003cmeta http-equiv=\"refresh\" content=\"0; url=https://evil.example/x\u003e\u003cimg src=x onerror=alert(document.domain)\u003e\"\u003e\u003c/head\u003e\u003c/html\u003e\n```\n\nThe `\u003e` after `evil.example/x` terminates the `content=\"\u2026\"` attribute, and the `\u003cimg onerror\u003e` tag executes JavaScript in the application\u0027s origin before any redirect\noccurs.\n\n### Patches\nFixed in `nuxt@4.4.6` and `nuxt@3.21.6` by [#35052](https://github.com/nuxt/nuxt/pull/35052). The fix percent-encodes the full set of HTML-attribute-significant characters (`\u0026`, `\"`, `\u0027`, `\u003c`, `\u003e`) before interpolating the URL into the meta-refresh body\n\n### Workarounds\nIf you can\u0027t upgrade immediately, validate user-controlled URLs before passing them to `navigateTo(url, { external: true })`. At minimum, normalise through `new URL(input).toString()` and reject inputs containing `\u003c` or `\u003e` (a normalised URL with these characters is malformed and safe to refuse).",
  "id": "GHSA-fx6j-w5w5-h468",
  "modified": "2026-07-08T17:35:00Z",
  "published": "2026-05-19T15:49:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45669"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nuxt/nuxt/pull/35052"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/nuxt/nuxt"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Nuxt: Reflected XSS in `navigateTo()` external redirect"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-45669 (GCVE-0-2026-45669)

FKIE_CVE-2026-45669

GHSA-FX6J-W5W5-H468

Summary

Impact

Details

Proof of concept

Patches

Workarounds

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour