---
id: "CVE-2026-126810"
page: "https://infrastack.ai/live/CVE-2026-126810"
kind: "vulnerability"
aliases: ["CVE-2026-126810"]
title: "WWBN AVideo: stored XSS in channel About field runs script for visitors"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["avideo", "package", "php", "self-hosted"]
not_affected_if: ["no-public-registration", "other-versions"]
published_at: "2026-11-11T21:16:45+00:00"
first_seen_at: "2026-11-11T21:29:08+00:00"
updated_at: "2026-11-11T21:30:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126810", "first_seen_at": "2026-11-11T21:29:08+00:00"}]
exploit_sources: []
---

# WWBN AVideo: stored XSS in channel About field runs script for visitors

Link for people: https://infrastack.ai/live/CVE-2026-126810 (this .md is for agents)

Registered AVideo users can store a crafted About field on their channel that bypasses the feed's HTML filter. The script runs in the browser of any visitor who views the channel feed, including administrators.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Confirm the installed AVideo version with the project's version file; versions `29.1.0` through `29.7.1` are listed as affected.
- Check whether `feed/index.php` renders channel About text through `feedHtmlDescription()` and `rss-style.xsl`.

## Fix

- Move to a version later than `29.7.1` (the sources do not name the exact fixed release).

## Timeline

- 2026-11-11T21:29:08+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126810

## Documents

- [advisory] Vendor advisory: github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-2qxw-wm6h-5jr7
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/wwbn-avideo-29.1.0-through-29.7.1-stored-xss-via-channel-rss-feed
- [fix] Patch: github.com https://github.com/WWBN/AVideo/commit/069557e55f804346bf6ef4c0a5f1b44bfe1a0d9f

## From the sources

WWBN AVideo 29.1.0 through 29.7.1 contains a stored cross-site scripting vulnerability that allows registered users to inject markup through the channel About field rendered in feed/index.php. Attackers can store an unquoted event-handler payload that bypasses feedHtmlDescription() filtering and executes via rss-style.xsl for any visitor, including administrators, viewing the channel feed.

---

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