Stored cross-site scripting in Contest Gallery plugin for WordPress

Published: 2025-05-12

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2025-3862
CWE-ID	CWE-79
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Contest Gallery - Photo Contest Plugin for WordPress Web applications / Modules and components for CMS
Vendor	Contest Gallery

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Stored cross-site scripting

EUVDB-ID: #VU108921

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-3862

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "id" parameter. A remote user can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Contest Gallery - Photo Contest Plugin for WordPress: 26.0.0 - 26.0.6

CPE2.3

External links

https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.5/shortcodes/cg_entry_on_off.php#L20
https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.7/shortcodes/cg_entry_on_off.php#L20
https://plugins.trac.wordpress.org/changeset/3288915
https://wordpress.org/plugins/contest-gallery/#developers
https://www.contest-gallery.com/documentation/
https://www.wordfence.com/threat-intel/vulnerabilities/id/a1b043a1-7bee-4ef0-86d9-19cf202cfc71?source=cve

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.