CVE-2026-50182

WWBN AVideo is an open source video platform. Versions prior to 29.0 contain an unauthenticated Reflected XSS vulnerability through AVideo YouTubeAPI Gallery Pagination. The $_GET['search'] query parameter is concatenated directly into the href attribute of two pagination links in plugin/YouTubeAPI/gallerySection.php (lines 67 and 74) with no htmlspecialchars, no urlencode, and no allow-list check. An injected <script> element is then extracted by the AVideo Layout plugin and concatenated into a single trailing inline script block at the bottom of the page, where the browser executes it. Any unauthenticated attacker can lure a victim into following a crafted URL to execute arbitrary JavaScript under the AVideo origin, which can read non-HttpOnly cookies and issue authenticated AJAX requests as the victim, and when the victim is an administrator, it can perform any cookie-authenticated admin action (create user, promote to admin, change configuration, install plugin), escalating a single click into full administrative takeover. This issue has been patched by this commit: https://github.com/WWBN/AVideo/commit/f50fc033b7adb36f1ffd6640e7826468bdafdec3.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/WWBN/AVideo/commit/f50fc033b7adb36f1ffd6640e7826468bdafdec3
https://github.com/WWBN/AVideo/security/advisories/GHSA-hgjh-6wj8-gcgf
https://github.com/WWBN/AVideo/security/advisories/GHSA-hgjh-6wj8-gcgf

Configurations

No configuration.

History

17 Jul 2026, 13:18

Type	Values Removed	Values Added
References	~~() https://github.com/WWBN/AVideo/security/advisories/GHSA-hgjh-6wj8-gcgf -~~	() https://github.com/WWBN/AVideo/security/advisories/GHSA-hgjh-6wj8-gcgf -

15 Jul 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-15 22:16

Updated : 2026-07-17 13:18

NVD link : CVE-2026-50182

Mitre link : CVE-2026-50182

CVE.ORG link : CVE-2026-50182

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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