CVE-2026-100630

EUVD-2026-87724

26.09.2026, 14:16

AVideo before 29.1.0 contains a stored cross-site scripting vulnerability in the video trailer1 field rendered unsanitized within an inline onclick JavaScript string. Attackers with video upload permission can store HTML entity-encoded payloads that bypass isValidURL() validation and are decoded by the browser to break out of the JavaScript string, executing arbitrary code in any visitor's session including administrators.

Cross-site Scripting

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
VulnCheck	CNA	5.4 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Base Score

CVSS 3.x

EPSS Score

Percentile: 20.3%

Early Detection

Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).

Vendor	Product	Version	Source
wwbn	avideo	𝑥 < 29.1.0	CNA

Common Weakness Enumeration

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The software 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.

References

https://github.com/WWBN/AVideo/commit/40b3267760924389c626a549bb1c6fd013b3b29c

https://github.com/WWBN/AVideo/security/advisories/GHSA-v7vx-v9q9-qhw3

https://www.vulncheck.com/advisories/avideo-stored-xss-via-html-entity-bypass-in-trailer1-field

https://github.com/WWBN/AVideo/security/advisories/GHSA-v7vx-v9q9-qhw3