FKIE_CVE-2026-4002

Vulnerability from fkie_nvd - Published: 2026-04-15 09:16 - Updated: 2026-04-22 20:23
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Summary
The Petje.af plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 2.1.8. This is due to missing nonce validation in the ajax_revoke_token() function which handles the 'petjeaf_disconnect' AJAX action. The function performs destructive operations including revoking OAuth2 tokens, deleting user meta, and deleting WordPress user accounts (for users with the 'petjeaf_member' role) without verifying the request originated from a legitimate source. This makes it possible for unauthenticated attackers to force authenticated users to delete their Petje.af member user accounts via a forged request granted the victim clicks on a link or visits a malicious site.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L326
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L346
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af.php#L182
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L326
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L346
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af.php#L182
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/28a071ac-37ee-4fb9-b8c6-0a782ee673b4?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Petje.af plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 2.1.8. This is due to missing nonce validation in the ajax_revoke_token() function which handles the \u0027petjeaf_disconnect\u0027 AJAX action. The function performs destructive operations including revoking OAuth2 tokens, deleting user meta, and deleting WordPress user accounts (for users with the \u0027petjeaf_member\u0027 role) without verifying the request originated from a legitimate source. This makes it possible for unauthenticated attackers to force authenticated users to delete their Petje.af member user accounts via a forged request granted the victim clicks on a link or visits a malicious site."
    }
  ],
  "id": "CVE-2026-4002",
  "lastModified": "2026-04-22T20:23:16.350",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-04-15T09:16:32.547",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L326"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L346"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af.php#L182"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L326"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L346"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af.php#L182"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/28a071ac-37ee-4fb9-b8c6-0a782ee673b4?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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