FKIE_CVE-2019-9787

Vulnerability from fkie_nvd - Published: 2019-03-14 16:29 - Updated: 2026-06-17 02:44
Severity
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php.
References
cve@mitre.orghttp://www.securityfocus.com/bid/107411Third Party Advisory, VDB Entry
cve@mitre.orghttps://blog.ripstech.com/2019/wordpress-csrf-to-rce/Exploit, Third Party Advisory
cve@mitre.orghttps://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080bPatch, Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
cve@mitre.orghttps://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/Release Notes, Vendor Advisory
cve@mitre.orghttps://wordpress.org/support/wordpress-version/version-5-1-1/Release Notes, Vendor Advisory
cve@mitre.orghttps://wpvulndb.com/vulnerabilities/9230
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4677
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107411Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://blog.ripstech.com/2019/wordpress-csrf-to-rce/Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080bPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html
af854a3a-2127-422b-91ae-364da2661108https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://wordpress.org/support/wordpress-version/version-5-1-1/Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://wpvulndb.com/vulnerabilities/9230
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4677
Impacted products
Vendor Product Version
wordpress wordpress *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "58A14BF4-1BA8-4758-9703-829F85F4D04C",
              "versionEndExcluding": "5.1.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "WordPress before 5.1.1 does not properly filter comment content, leading to Remote Code Execution by unauthenticated users in a default configuration. This occurs because CSRF protection is mishandled, and because Search Engine Optimization of A elements is performed incorrectly, leading to XSS. The XSS results in administrative access, which allows arbitrary changes to .php files. This is related to wp-admin/includes/ajax-actions.php and wp-includes/comment.php."
    },
    {
      "lang": "es",
      "value": "WordPress, en versiones anteriores a la 5.1.1, no filtra correctamente el contenido, lo que conduce a la ejecuci\u00f3n remota de c\u00f3digo por parte de usuarios no autenticados en una configuraci\u00f3n por defecto. Esto ocurre debido a que la protecci\u00f3n CSRF se gestiona de manera incorrecta y porque la optimizaci\u00f3n del motor de b\u00fasqueda de los elementos A se realiza incorrectamente, lo que desemboca en Cross-Site Scripting (XSS). El XSS resulta en un acceso administrativo, lo que permite cambios arbitrarios en archivos .php. Esto est\u00e1 relacionado con wp-admin/includes/ajax-actions.php y wp-includes/comment.php."
    }
  ],
  "id": "CVE-2019-9787",
  "lastModified": "2026-06-17T02:44:20.553",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-03-14T16:29:00.337",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/107411"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://blog.ripstech.com/2019/wordpress-csrf-to-rce/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://wordpress.org/support/wordpress-version/version-5-1-1/"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://wpvulndb.com/vulnerabilities/9230"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.debian.org/security/2020/dsa-4677"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/107411"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://blog.ripstech.com/2019/wordpress-csrf-to-rce/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/WordPress/WordPress/commit/0292de60ec78c5a44956765189403654fe4d080b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00044.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://wordpress.org/news/2019/03/wordpress-5-1-1-security-and-maintenance-release/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://wordpress.org/support/wordpress-version/version-5-1-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://wpvulndb.com/vulnerabilities/9230"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.debian.org/security/2020/dsa-4677"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.