CVE-2025-3862
Contest Gallery <= 26.0.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via id Parameter
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
Contest Gallery plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘id’ parameter in all versions up to, and including, 26.0.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | contest-gallery |
| Product | contest gallery – upload & vote photos, media, sell with paypal & stripe |
| Published | May 8, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
contest-gallery / Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe
0 ≤ 26.0.6
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/a1b043a1-7bee-4ef0-86d9-19cf202cfc71?source=cve contest-gallery.com: https://www.contest-gallery.com/documentation/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.5/shortcodes/cg_entry_on_off.php#L20 wordpress.org: https://wordpress.org/plugins/contest-gallery/#developers plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3288915 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.7/shortcodes/cg_entry_on_off.php#L20
Credits
Matthew Rollings