Stored XSS Vulnerability in Contest Gallery by Wasiliy Strecker
CVE-2026-111837

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
Contest Gallery
Vendor
CVE Published:
21 October 2026

What is CVE-2026-111837?

A Stored XSS vulnerability exists in the Contest Gallery plugin by Wasiliy Strecker, allowing malicious users to inject harmful scripts. This vulnerability affects versions up to 34.0.1, posing a risk as it enables attackers to execute arbitrary JavaScript in the context of users' sessions, potentially compromising sensitive information and the overall security of affected WordPress installations.

Affected Version(s)

Contest Gallery 0 <= 34.0.1

References

https://patchstack.com/database/wordpress/plugin/contest-...
vdb-entry

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

beopseong.kim | Patchstack Bug Bounty Program
.