GHSA-GMPC-FXG2-VCMQ

GHSA-GMPC-FXG2-VCMQ is a medium-severity cross-site scripting (XSS) vulnerability in wwbn/avideo (composer), affecting versions <= 26.0. No fixed version is listed yet.

Summary

AVideo has Stored XSS via Unescaped Menu Item Fields in TopMenu Plugin

Impact

Stored cross-site scripting on every page of the AVideo instance. An attacker can steal session cookies, redirect users to phishing pages, modify page content, or perform actions on behalf of authenticated users (including admins). Because the menu renders globally, a single injection point compromises all visitors to the site.

Untrusted input is rendered as active markup in a victim's browser, which can run script in their session. Typical impact: session or credential theft, and actions taken as the user.

GHSA-GMPC-FXG2-VCMQ has a CVSS score of 6.1 (Medium). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. No fixed version is listed yet, so configuration controls and monitoring matter more in the interim.

Affected versions

wwbn/avideo (<= 26.0)

Security releases

Not available

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

See it in your environment

Remediation advice

Apply htmlspecialchars() with ENT_QUOTES to all outputs of $value2['finalURL'], $value2['icon'], and $menuItem->getText() in the TopMenu plugin templates:

// HTMLMenuRight.php:24
<i class="<?php echo htmlspecialchars($value2['icon'], ENT_QUOTES, 'UTF-8'); ?>"></i>

// HTMLMenuRight.php:40
<a href="<?php echo htmlspecialchars($value2['finalURL'], ENT_QUOTES, 'UTF-8'); ?>">

// HTMLMenuLeft.php:32
<a href="<?php echo htmlspecialchars($value2['finalURL'], ENT_QUOTES, 'UTF-8'); ?>">

// floatMenu.php - same pattern for any $value2['icon'] and $value2['finalURL'] outputs
// index.php:49
<?php echo htmlspecialchars($menuItem->getText(), ENT_QUOTES, 'UTF-8'); ?>

Apply the same encoding to every location in HTMLMenuRight.php, HTMLMenuLeft.php, floatMenu.php, and index.php where these values are echoed into HTML.

Found by aisafe.io

Frequently Asked Questions

  1. What is GHSA-GMPC-FXG2-VCMQ? GHSA-GMPC-FXG2-VCMQ is a medium-severity cross-site scripting (XSS) vulnerability in wwbn/avideo (composer), affecting versions <= 26.0. No fixed version is listed yet. Untrusted input is rendered as active markup in a victim's browser, which can run script in their session.
  2. How severe is GHSA-GMPC-FXG2-VCMQ? GHSA-GMPC-FXG2-VCMQ has a CVSS score of 6.1 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
  3. Which versions of wwbn/avideo are affected by GHSA-GMPC-FXG2-VCMQ? wwbn/avideo (composer) versions <= 26.0 is affected.
  4. Is there a fix for GHSA-GMPC-FXG2-VCMQ? No fixed version is listed for GHSA-GMPC-FXG2-VCMQ yet. Monitor the advisory for updates and apply mitigations in the interim.
  5. Is GHSA-GMPC-FXG2-VCMQ exploitable, and should I be worried? Whether GHSA-GMPC-FXG2-VCMQ is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
  6. What actually determines whether GHSA-GMPC-FXG2-VCMQ is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
  7. How do I fix GHSA-GMPC-FXG2-VCMQ? No fixed version is listed yet. In the interim: Validate and encode untrusted input before rendering it as HTML. Applying a Content Security Policy reduces the impact if encoding is bypassed.

Other vulnerabilities in wwbn/avideo

CVE-2026-33731CVE-2026-33692CVE-2026-33684CVE-2026-54458CVE-2026-50183

Stop the waste.
Protect your environment with Kodem.