Vulnerability-Lookup

GSD-2022-23517

Vulnerability from gsd - Updated: 2022-12-13 00:00

Details

## Summary Certain configurations of rails-html-sanitizer `< 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. ## Mitigation Upgrade to rails-html-sanitizer `>= 1.4.4`.

Aliases

CVE-2022-23517

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2022-23517",
    "id": "GSD-2022-23517",
    "references": [
      "https://www.suse.com/security/cve/CVE-2022-23517.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rails-html-sanitizer",
            "purl": "pkg:gem/rails-html-sanitizer"
          }
        }
      ],
      "aliases": [
        "CVE-2022-23517",
        "GHSA-5x79-w82f-gw8w"
      ],
      "details": "## Summary\n\nCertain configurations of rails-html-sanitizer `\u003c 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.\n\n## Mitigation\n\nUpgrade to rails-html-sanitizer `\u003e= 1.4.4`.\n",
      "id": "GSD-2022-23517",
      "modified": "2022-12-13T00:00:00.000Z",
      "published": "2022-12-13T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
        },
        {
          "type": "WEB",
          "url": "https://cwe.mitre.org/data/definitions/1333.html"
        },
        {
          "type": "WEB",
          "url": "https://hackerone.com/reports/1684163"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Inefficient Regular Expression Complexity in rails-html-sanitizer"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-23517",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "rails-html-sanitizer",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 1.4.4"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "rails"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer \u003c 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-1333",
                "lang": "eng",
                "value": "CWE-1333: Inefficient Regular Expression Complexity"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w",
            "refsource": "MISC",
            "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
          },
          {
            "name": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979",
            "refsource": "MISC",
            "url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
          },
          {
            "name": "https://hackerone.com/reports/1684163",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/1684163"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-5x79-w82f-gw8w",
        "discovery": "UNKNOWN"
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2022-23517",
      "cvss_v3": 7.5,
      "date": "2022-12-13",
      "description": "## Summary\n\nCertain configurations of rails-html-sanitizer `\u003c 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.\n\n## Mitigation\n\nUpgrade to rails-html-sanitizer `\u003e= 1.4.4`.\n",
      "gem": "rails-html-sanitizer",
      "ghsa": "5x79-w82f-gw8w",
      "patched_versions": [
        "\u003e= 1.4.4"
      ],
      "related": {
        "url": [
          "https://cwe.mitre.org/data/definitions/1333.html",
          "https://hackerone.com/reports/1684163"
        ]
      },
      "title": "Inefficient Regular Expression Complexity in rails-html-sanitizer",
      "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c1.4.4",
          "affected_versions": "All versions before 1.4.4",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-1333",
            "CWE-937"
          ],
          "date": "2022-12-16",
          "description": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer \u003c 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.",
          "fixed_versions": [
            "1.4.4"
          ],
          "identifier": "CVE-2022-23517",
          "identifiers": [
            "CVE-2022-23517",
            "GHSA-5x79-w82f-gw8w",
            "GMS-2022-8298"
          ],
          "not_impacted": "All versions starting from 1.4.4",
          "package_slug": "gem/rails-html-sanitizer",
          "pubdate": "2022-12-14",
          "solution": "Upgrade to version 1.4.4 or above.",
          "title": "Inefficient Regular Expression Complexity",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2022-23517",
            "https://hackerone.com/reports/1684163",
            "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w",
            "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979",
            "https://github.com/advisories/GHSA-5x79-w82f-gw8w"
          ],
          "uuid": "9b3ec097-95d2-4f44-a864-5a6791e08ae9"
        },
        {
          "affected_range": "\u003c0",
          "affected_versions": "All versions before 1.4.4",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2022-12-13",
          "description": "## Summary\n\nCertain configurations of rails-html-sanitizer `\u003c 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.\n\n\n## Mitigation\n\nUpgrade to rails-html-sanitizer `\u003e= 1.4.4`.\n\n\n## Severity\n\nThe maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#.\n\n\n## References\n\n- [CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)](https://cwe.mitre.org/data/definitions/1333.html)\n- https://hackerone.com/reports/1684163\n\n\n## Credit\n\nThis vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).\n",
          "fixed_versions": [
            "1.4.4"
          ],
          "identifier": "GMS-2022-8298",
          "identifiers": [
            "GHSA-5x79-w82f-gw8w",
            "GMS-2022-8298",
            "CVE-2022-23517"
          ],
          "not_impacted": "All versions starting from 1.4.4",
          "package_slug": "gem/rails-html-sanitizer",
          "pubdate": "2022-12-13",
          "solution": "Upgrade to version 1.4.4 or above.",
          "title": "Duplicate of ./gem/rails-html-sanitizer/CVE-2022-23517.yml",
          "urls": [
            "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w",
            "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979",
            "https://hackerone.com/reports/1684163",
            "https://github.com/advisories/GHSA-5x79-w82f-gw8w"
          ],
          "uuid": "57e24f9a-7f56-4c26-8b18-3474cd5fc4c8"
        }
      ]
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:rubyonrails:rails_html_sanitizers:*:*:*:*:*:rails:*:*",
                    "matchCriteriaId": "CC2FBD9D-39C2-4D54-83B6-B3C334623A8D",
                    "versionEndExcluding": "1.4.4",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer \u003c 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4."
          },
          {
            "lang": "es",
            "value": "rails-html-sanitizer es responsable de sanitizar fragmentos HTML en aplicaciones Rails. Ciertas configuraciones de rails-html-sanitizer \u0026lt; 1.4.4 utilizan una expresi\u00f3n regular ineficiente que es susceptible a un retroceso excesivo al intentar sanitizar ciertos atributos SVG. Esto puede provocar una denegaci\u00f3n de servicio a trav\u00e9s del consumo de recursos de CPU. Este problema se ha corregido en la versi\u00f3n 1.4.4."
          }
        ],
        "id": "CVE-2022-23517",
        "lastModified": "2024-02-01T16:24:41.460",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "security-advisories@github.com",
              "type": "Secondary"
            }
          ]
        },
        "published": "2022-12-14T17:15:10.130",
        "references": [
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Permissions Required",
              "Third Party Advisory"
            ],
            "url": "https://hackerone.com/reports/1684163"
          },
          {
            "source": "security-advisories@github.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html"
          }
        ],
        "sourceIdentifier": "security-advisories@github.com",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-1333"
              }
            ],
            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

CVE-2022-23517 (GCVE-0-2022-23517)

Vulnerability from cvelistv5 – Published: 2022-12-14 16:10 – Updated: 2025-11-03 21:45

Title

Inefficient Regular Expression Complexity in rails-html-sanitizer

Summary

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-02-02 17:07 UTC

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7895 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/rails/rails-html-sanitizer/sec…	x_refsource_CONFIRM
https://github.com/rails/rails-html-sanitizer/com…	x_refsource_MISC
https://hackerone.com/reports/1684163	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2023…
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
rails	rails-html-sanitizer	Affected: < 1.4.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T21:45:57.498Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
          },
          {
            "name": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
          },
          {
            "name": "https://hackerone.com/reports/1684163",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1684163"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-23517",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-02T17:07:58.712366Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-19T20:06:05.666Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rails-html-sanitizer",
          "vendor": "rails",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.4.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Certain configurations of rails-html-sanitizer \u003c 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption. This issue has been patched in version 1.4.4."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333: Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-09-13T16:06:18.564Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
        },
        {
          "name": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
        },
        {
          "name": "https://hackerone.com/reports/1684163",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1684163"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html"
        }
      ],
      "source": {
        "advisory": "GHSA-5x79-w82f-gw8w",
        "discovery": "UNKNOWN"
      },
      "title": "Inefficient Regular Expression Complexity in rails-html-sanitizer"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-23517",
    "datePublished": "2022-12-14T16:10:22.304Z",
    "dateReserved": "2022-01-19T21:23:53.778Z",
    "dateUpdated": "2025-11-03T21:45:57.498Z",
    "requesterUserId": "c184a3d9-dc98-4c48-a45b-d2d88cf0ac74",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-5X79-W82F-GW8W

Vulnerability from github – Published: 2022-12-13 17:43 – Updated: 2025-11-04 16:41

Summary

Inefficient Regular Expression Complexity in rails-html-sanitizer

Details

Summary

Certain configurations of rails-html-sanitizer < 1.4.4 use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.

Mitigation

Upgrade to rails-html-sanitizer >= 1.4.4.

Severity

The maintainers have evaluated this as High Severity 7.5 (CVSS3.1).

References

CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)
https://hackerone.com/reports/1684163

Credit

This vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "RubyGems",
        "name": "rails-html-sanitizer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.4.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-23517"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-12-13T17:43:02Z",
    "nvd_published_at": "2022-12-14T17:15:00Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\nCertain configurations of rails-html-sanitizer `\u003c 1.4.4` use an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.\n\n\n## Mitigation\n\nUpgrade to rails-html-sanitizer `\u003e= 1.4.4`.\n\n\n## Severity\n\nThe maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).\n\n\n## References\n\n- [CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)](https://cwe.mitre.org/data/definitions/1333.html)\n- https://hackerone.com/reports/1684163\n\n\n## Credit\n\nThis vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).",
  "id": "GHSA-5x79-w82f-gw8w",
  "modified": "2025-11-04T16:41:23Z",
  "published": "2022-12-13T17:43:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23517"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1684163"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rails/rails-html-sanitizer"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23517.yml"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Inefficient Regular Expression Complexity in rails-html-sanitizer"
}

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

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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

GSD-2022-23517

CVE-2022-23517 (GCVE-0-2022-23517)

GHSA-5X79-W82F-GW8W

Summary

Mitigation

Severity

References

Credit

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour