Contest Gallery <= 26.0.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via id Parameter
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Wasiliy Strecker / ContestGallery developer | Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe | up to 26.0.6 | — | No fix listed | CNA |
- Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe VendorWasiliy Strecker / ContestGallery developer Affected up to 26.0.6 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:contest-gallery:contest_gallery:*:*:*:*:*:wordpress:*:* | before 26.0.7 | Vulnerable | Wasiliy Strecker / ContestGallery developer |
- cpe:2.3:a:contest-gallery:contest_gallery:*:*:*:*:*:wordpress:*:* Versions before 26.0.7 Vulnerable ·Wasiliy Strecker / ContestGallery developer
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-3862
- 2026-10-03 Alias added: GHSA-97h8-p95j-8mhw
References
Other 4
- https://www.contest-gallery.com/documentation/
- https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.5/shortcodes/cg_entry_on_off.php#L20
- https://wordpress.org/plugins/contest-gallery/#developers
- https://plugins.trac.wordpress.org/browser/contest-gallery/tags/26.0.7/shortcodes/cg_entry_on_off.php#L20
More Wasiliy Strecker / ContestGallery developer Contest Gallery vulnerabilities
- TI-2022-03804 Contest Gallery < 19.1.5 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2022-03802 Contest Gallery < 19.1.5.1 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
- TI-2024-26556 WordPress Contest Gallery plugin <= 23.1.2 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2022-03797 Contest Gallery < 19.1.5 - Admin+ SQL Injection CVSS 3.1MEDIUM 6.5
- TI-2022-03812 Contest Gallery < 19.1.5 - Author+ SQL Injection CVSS 3.1MEDIUM 6.5
- TI-2022-03811 Contest Gallery < 19.1.5 - Author+ SQL Injection CVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-3862 · CVE Program
- CVE-2025-3862 · NVD
- FIRST EPSS
- GHSA-97h8-p95j-8mhw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences