CVE-2026-61986
Received Received - Intake

Unauthenticated XSS in Contest Gallery Plugin

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: Patchstack

Description
Unauthenticated Cross Site Scripting (XSS) in Contest Gallery <= 30.0.5 versions.

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-61986
EUVD
EUVD-2026-62373

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
patchstack contest_gallery to 30.0.5 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability affecting Contest Gallery plugin versions 30.0.5 and below. It allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Detection Guidance

To detect this XSS vulnerability in Contest Gallery <= 30.0.5, inspect web application inputs for unsanitized user-supplied data. Check form fields, URL parameters, and headers for reflective or stored XSS payloads like <script>alert(1)</script>. Use browser developer tools to monitor network requests for suspicious script injections.

Impact Analysis

An attacker could steal user sessions, deface websites, or redirect users to malicious sites. Users with admin privileges could have their accounts compromised, potentially leading to full site takeover.

Mitigation Strategies

Immediately update Contest Gallery to the latest version beyond 30.0.5. If an update is unavailable, apply input validation and output encoding to all user-supplied data. Disable or restrict access to the vulnerable plugin until patched. Monitor logs for exploitation attempts.

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