FKIE_CVE-2025-12849

Vulnerability from fkie_nvd - Published: 2025-11-15 07:15 - Updated: 2025-11-18 14:06
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
The Contest Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 28.0.2. This is due to the plugin registering the `cg_check_wp_admin_upload_v10` AJAX action for both authenticated and unauthenticated users without implementing capability checks or nonce verification. This makes it possible for unauthenticated attackers to inject arbitrary WordPress media attachments into galleries and manipulate gallery metadata via the `cg_check_wp_admin_upload_v10` action. It does not enable an attacker to move or upload files.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L42
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L47
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L64
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L15
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L173
security@wordfence.comhttps://wordpress.org/plugins/contest-gallery/#developers
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/e000c4ad-43ec-4ad0-89f9-74e9e6d8b917?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Contest Gallery plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 28.0.2. This is due to the plugin registering the `cg_check_wp_admin_upload_v10` AJAX action for both authenticated and unauthenticated users without implementing capability checks or nonce verification. This makes it possible for unauthenticated attackers to inject arbitrary WordPress media attachments into galleries and manipulate gallery metadata via the `cg_check_wp_admin_upload_v10` action. It does not enable an attacker to move or upload files."
    }
  ],
  "id": "CVE-2025-12849",
  "lastModified": "2025-11-18T14:06:55.963",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-11-15T07:15:42.640",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L42"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L47"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L64"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L15"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L173"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://wordpress.org/plugins/contest-gallery/#developers"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e000c4ad-43ec-4ad0-89f9-74e9e6d8b917?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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  • 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.
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  • 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.



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