# CVE-2026-50183: WWBN AVideo stored XSS in YouTubeAPI plugin

Source: https://junglewise.ai/threats/cve-2026-50183-wwbn-avideo-stored-xss-in-youtubeapi-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-15. Updated: 2026-07-15  
License: CC BY 4.0 with a link back

CVE-2026-50183 · Severity: medium · CVSS 4.7 · Published 2026-07-15

WWBN AVideo is an open-source video sharing platform. A security vulnerability in its YouTube integration allows anyone who uploads a video to YouTube to potentially take control of an AVideo website. By giving a YouTube video a specially crafted title, an attacker can force the AVideo site to execute malicious code in the browsers of its visitors; if a site administrator views the page, the attacker could gain full administrative access to the platform.

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

## Quick answers

**Is CVE-2026-50183 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-50183 being exploited in the wild.

**How severe is CVE-2026-50183?** Medium severity, with a CVSS score of 4.7, published 15 July 2026.

**Which products and versions are affected?** wwbn/avideo (Packagist) <= 29.0, ECOSYSTEM:introduced=0,last_affected=29.0; WWBN AVideo <= 29.0.

**Is there a fix for CVE-2026-50183?** 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-2026-50183 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-50183?** Check whether you run wwbn/avideo (Packagist) or 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

A stored Cross-Site Scripting (XSS) vulnerability exists in the YouTubeAPI plugin of WWBN AVideo due to improper neutralization of input during web page generation (CWE-79). The `plugin/YouTubeAPI/gallerySection.php` component renders the `snippet.title` field from the YouTube Data API directly into the homepage gallery markup without HTML encoding. An attacker can upload a video to YouTube with a malicious JavaScript payload in the title that matches the AVideo site's configured search queries. When the AVideo platform fetches and caches this metadata, the payload executes in the browser of any user viewing the gallery. If an authenticated administrator views the page, the script can perform unauthorized actions such as creating new admin users or changing site configurations. The issue is fixed in commit 7292129eaee5f609beae103b5cb387d55f17b877 by applying `htmlspecialchars` to the affected fields.

## Affected products

- WWBN AVideo <= 29.0

## Identifiers

- CVE-2026-50183
- GHSA-66q5-cj5g-wrfx

## Timeline

- 2026-05-28: advisory: GitHub Security Advisory published
- 2026-07-15: disclosed: NVD publication date

## References

- [https://github.com/WWBN/AVideo/commit/7292129eaee5f609beae103b5cb387d55f17b877](https://github.com/WWBN/AVideo/commit/7292129eaee5f609beae103b5cb387d55f17b877)
- [https://github.com/WWBN/AVideo/security/advisories/GHSA-66q5-cj5g-wrfx](https://github.com/WWBN/AVideo/security/advisories/GHSA-66q5-cj5g-wrfx)

## 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)