CVE-2025-12849

MEDIUM EPSS 19.4%
Published Nov 15, 20257mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Nov 15, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
19.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

References 7

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L42
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L47
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L64
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L15
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L173
  • wordpress.org https://wordpress.org/plugins/contest-gallery/#developers
  • wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/e000c4ad-43ec-4ad0-89f9-74e9e6d8b917?source=cve

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.