CVE-2026-100630

AVideo before 29.1.0 Stored XSS via HTML Entity Bypass in trailer1 Field

State: Published
Severity: 5.1 Medium
Published: Sep 26, 2026
Updated: Oct 3, 2026
Reserved: Sep 26, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N	VulnCheck
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	VulnCheck

Weaknesses

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

Affected Products

Product	Versions
AVideoWWBN	before 29.1.0Affected

References

GitHub Security Advisory (GHSA-v7vx-v9q9-qhw3)vendor-advisory
https://github.com/WWBN/AVideo/commit/40b3267760924389c626a549bb1c6fd013b3b29cpatch
VulnCheck Advisory: AVideo Stored XSS via HTML Entity Bypass in trailer1 Fieldthird-party-advisory

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