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.
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Fixes

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History

Sat, 15 Nov 2025 07:00:00 +0000

Type Values Removed Values Added
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.
Title Contest Gallery <= 28.0.2 - Missing Authorization
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2025-11-15T06:41:31.470Z

Reserved: 2025-11-06T21:38:51.157Z

Link: CVE-2025-12849

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-11-15T07:15:42.640

Modified: 2025-11-15T07:15:42.640

Link: CVE-2025-12849

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.