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CVE-2025-12849— Contest Gallery <= 28.0.2 - Missing Authorization

Quick assessment

Affected
contest-gallery Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Contest Gallery 28.0.2及之前版本存在安全漏洞，该漏洞源于授权绕过，可能导致注入任意媒体附件。

CVSS 5.3 · Medium EPSS 0.32% · P22

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-12849

Vulnerability Information
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Vulnerability Title
Contest Gallery <= 28.0.2 - Missing Authorization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Contest Gallery 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Contest Gallery 28.0.2及之前版本存在安全漏洞，该漏洞源于授权绕过，可能导致注入任意媒体附件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
contest-gallery Contest Gallery – Upload, Vote & Sell with PayPal and Stripe * ~ 28.0.2 -

II. Public POCs for CVE-2025-12849

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III. Intelligence Information for CVE-2025-12849

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Patches & Fixes for CVE-2025-12849 (1)

Vendor Pages for CVE-2025-12849 (1)

IV. Related Vulnerabilities

Same product: Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe
Same vendor: contest-gallery
Same weakness: CWE-862

V. Comments for CVE-2025-12849

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