CVE-2026-100630: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in WWBN AVideo
AVideo 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.
AI Analysis
Technical Summary
WWBN AVideo versions >=0 <=29.1.1 contain a stored XSS vulnerability in the video trailer1 field. This field is rendered unsanitized inside an inline onclick JavaScript string, allowing attackers with video upload permissions to store HTML entity-encoded payloads. These payloads bypass the isValidURL() validation and are decoded by browsers to break out of the JavaScript context, leading to arbitrary code execution in any visitor's session, including administrators. The vulnerability was published on 2026-09-26 and has a CVSS 4.0 score of 5.1, indicating medium severity.
Potential Impact
Successful exploitation allows attackers with video upload permissions to execute arbitrary JavaScript code in the context of any visitor's browser session, including administrators. This can lead to session hijacking, unauthorized actions, or other malicious activities within the affected web application.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict video upload permissions to trusted users only and consider additional input validation or sanitization controls on the video trailer1 field to prevent injection of malicious payloads.
CVE-2026-100630: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in WWBN AVideo
Description
AVideo 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.
CVSS v4.0
Score 5.1medium
Affected software
WWBN
AVideo
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
WWBN AVideo versions >=0 <=29.1.1 contain a stored XSS vulnerability in the video trailer1 field. This field is rendered unsanitized inside an inline onclick JavaScript string, allowing attackers with video upload permissions to store HTML entity-encoded payloads. These payloads bypass the isValidURL() validation and are decoded by browsers to break out of the JavaScript context, leading to arbitrary code execution in any visitor's session, including administrators. The vulnerability was published on 2026-09-26 and has a CVSS 4.0 score of 5.1, indicating medium severity.
Potential Impact
Successful exploitation allows attackers with video upload permissions to execute arbitrary JavaScript code in the context of any visitor's browser session, including administrators. This can lead to session hijacking, unauthorized actions, or other malicious activities within the affected web application.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict video upload permissions to trusted users only and consider additional input validation or sanitization controls on the video trailer1 field to prevent injection of malicious payloads.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-26T02:31:42.100Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ab7c9a3f7a7c5410652fd12
Added to database: 09/26/2026, 13:33:23 UTC
Last enriched: 09/26/2026, 14:18:20 UTC
Last updated: 09/27/2026, 04:31:32 UTC
Views: 7
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