CVE-2025-12849 json
Contest Gallery <= 28.0.2 - Missing Authorization
published 2025-11-15 11 mo ago modified 2026-10-07 32 d ago also EUVD-2025-197688
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 11 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- contest-gallery Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/e000c4ad-43ec-4ad0-89f9-74e9e6d8b917?source=cve
- plugins.trac.wordpress.org /browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L42
- plugins.trac.wordpress.org /browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L47
- plugins.trac.wordpress.org /browser/contest-gallery/tags/28.0.2/v10/include-functions-v10.php#L64
- plugins.trac.wordpress.org /browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L15
- plugins.trac.wordpress.org /browser/contest-gallery/tags/28.0.2/v10/v10-admin/gallery/wp-uploader.php#L173
- wordpress.org /plugins/contest-gallery/#developers
Sources
- CVE List CVE-2025-12849
- NVD CVE-2025-12849
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.