# CVE-2026-100630: AVideo stored cross-site scripting in trailer1 field

Source: https://junglewise.ai/threats/cve-2026-100630-avideo-contains-a-stored-cross-site-scripting-vulnerability-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-26. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-100630 · Severity: medium · CVSS 5.4 · Published 2026-09-26

AVideo is a video streaming and management platform. An attacker with permission to upload videos can store malicious code in the trailer field that executes in the browser of anyone viewing the video gallery, including site administrators. This allows attackers to steal sessions, change settings, or deface the site.

Technologies: [WWBN AVideo](https://junglewise.ai/threats/technologies/avideo). Vendors: [WWBN](https://junglewise.ai/threats/vendors/wwbn).

## Quick answers

**Is CVE-2026-100630 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100630 being exploited in the wild.

**How severe is CVE-2026-100630?** Medium severity, with a CVSS score of 5.4, published 26 September 2026.

**Which products and versions are affected?** WWBN AVideo all versions through 29.1.1.

**Is there a fix for CVE-2026-100630?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-100630 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-100630?** Check whether you run WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Stored XSS in the video trailer1 field rendered unsanitized in an inline onclick JavaScript attribute. The isValidURL() validator rejects literal quote and bracket characters but allows HTML entity sequences (e.g., '), which the browser decodes when parsing the attribute, breaking out of the JavaScript string. Any authenticated user with video upload permissions can inject a payload such as http://a/');alert(document.domain);// to execute arbitrary JavaScript in any visitor's session.

## Affected products

- WWBN AVideo all versions through 29.1.1

## Timeline

- 2026-09-26: disclosed
- 2026-09-11: other: vulnerability discovered and advisory prepared

## References

- [https://github.com/WWBN/AVideo/security/advisories/GHSA-v7vx-v9q9-qhw3](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://www.vulncheck.com/advisories/avideo-stored-xss-via-html-entity-bypass-in-trailer1-field)

## Related threats

- [WWBN AVideo stored cross-site scripting in channel feed](https://junglewise.ai/threats/cve-2026-126810-wwbn-avideo-29-1-0-through-29-7-1-contains-a-stored-cross-site)
- [WWBN AVideo missing authorization in import and file operations](https://junglewise.ai/threats/cve-2026-126809-wwbn-avideo-through-29-7-1-contains-a-missing-authorization)
- [WWBN AVideo stored cross-site scripting in video download link](https://junglewise.ai/threats/cve-2026-126806-wwbn-avideo-14-3-through-29-7-1-contains-a-stored-cross-site)
- [WWBN AVideo incorrect authorization in encoder endpoints](https://junglewise.ai/threats/cve-2026-126805-wwbn-avideo-through-29-7-1-contains-an-incorrect-authorization)
- [WWBN AVideo path traversal in ADs plugin deleteImage.json.php](https://junglewise.ai/threats/cve-2026-126804-wwbn-avideo-12-4-through-29-7-1-contains-a-path-traversal)