CVE-2021-29434 (GCVE-0-2021-29434)

Vulnerability from cvelistv5 – Published: 2021-04-19 18:45 – Updated: 2024-08-03 22:02
VLAI?
Title
Improper validation of URLs ('Cross-site Scripting') in Wagtail rich text fields
Summary
Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with `javascript:` URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch).
Severity ?
6.1 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-79 - {"CWE-79":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}
Assigner
References
Impacted products
Vendor Product Version
wagtail wagtail Affected: <= 2.11.6
Affected: >= 2.12, <= 2.12.3
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T22:02:51.911Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://pypi.org/project/wagtail/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "wagtail",
          "vendor": "wagtail",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 2.11.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.12, \u003c= 2.12.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with `javascript:` URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "{\"CWE-79\":\"Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-19T18:45:14",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://pypi.org/project/wagtail/"
        }
      ],
      "source": {
        "advisory": "GHSA-wq5h-f9p5-q7fx",
        "discovery": "UNKNOWN"
      },
      "title": "Improper validation of URLs (\u0027Cross-site Scripting\u0027) in Wagtail rich text fields",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-29434",
          "STATE": "PUBLIC",
          "TITLE": "Improper validation of URLs (\u0027Cross-site Scripting\u0027) in Wagtail rich text fields"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "wagtail",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c= 2.11.6"
                          },
                          {
                            "version_value": "\u003e= 2.12, \u003c= 2.12.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "wagtail"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with `javascript:` URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch)."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "{\"CWE-79\":\"Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx",
              "refsource": "CONFIRM",
              "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx"
            },
            {
              "name": "https://pypi.org/project/wagtail/",
              "refsource": "MISC",
              "url": "https://pypi.org/project/wagtail/"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-wq5h-f9p5-q7fx",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-29434",
    "datePublished": "2021-04-19T18:45:14",
    "dateReserved": "2021-03-30T00:00:00",
    "dateUpdated": "2024-08-03T22:02:51.911Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-29434\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2021-04-19T19:15:17.610\",\"lastModified\":\"2024-11-21T06:01:05.397\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with `javascript:` URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch).\"},{\"lang\":\"es\",\"value\":\"Wagtail es un sistema de gesti\u00f3n de contenido de Django.\u0026#xa0;En las versiones afectadas de Wagtail, al guardar el contenido de un campo de texto enriquecido en la interfaz de administraci\u00f3n, Wagtail no aplica comprobaciones del lado del servidor para garantizar a las URL de los enlaces usar un protocolo v\u00e1lido.\u0026#xa0;Un usuario malicioso con acceso a la interfaz de administraci\u00f3n podr\u00eda entonces dise\u00f1ar una petici\u00f3n POST para publicar contenido con URLs \\\"javascript:\\\" que contengan c\u00f3digo arbitrario.\u0026#xa0;La vulnerabilidad no es explotable por un visitante ordinario del sitio sin acceso al administrador de Wagtail.\u0026#xa0;V\u00e9ase el aviso de GitHub al que se hace referencia para obtener detalles adicionales, incluyendo una soluci\u00f3n alternativa.\u0026#xa0;Las versiones parcheadas ha sido lanzadas como Wagtail versi\u00f3n 2.11.7 (para la rama LTS 2.11) y Wagtail versi\u00f3n 2.12.4 (para la rama 2.12 actual)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":0.9,\"impactScore\":5.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.7,\"impactScore\":2.7}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:S/C:N/I:P/A:N\",\"baseScore\":3.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":6.8,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":true}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:torchbox:wagtail:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"2.11.6\",\"matchCriteriaId\":\"D49567BA-C5CC-43C3-AF42-EA0C310D579C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:torchbox:wagtail:*:*:*:*:lts:*:*:*\",\"versionStartIncluding\":\"2.11.0\",\"versionEndExcluding\":\"2.11.7\",\"matchCriteriaId\":\"12C5EC90-1517-407D-8FD2-48EC03048565\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:torchbox:wagtail:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.12.0\",\"versionEndExcluding\":\"2.12.4\",\"matchCriteriaId\":\"4EB39BD7-9D15-4076-BB7B-41183023FA60\"}]}]}],\"references\":[{\"url\":\"https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://pypi.org/project/wagtail/\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://pypi.org/project/wagtail/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Product\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.