Description
WWBN AVideo is an open source video platform. Prior to version 21.0, AVideo allows Markdown in video comments and uses Parsedown (v1.7.4) without Safe Mode enabled. Markdown links are not sufficiently sanitized, allowing `javascript:` URIs to be rendered as clickable links. An authenticated low-privilege attacker can post a malicious comment that injects persistent JavaScript. When another user clicks the link, the attacker can perform actions such as session hijacking, privilege escalation (including admin takeover), and data exfiltration. Version 21.0 contains a fix. As a workaround, validate and block unsafe URI schemes (e.g., `javascript:`) before rendering Markdown, and enable Parsedown Safe Mode.
INFO
Published Date :
2026-02-24T14:53:20.826Z
Last Modified :
2026-02-27T19:00:21.740Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-27568 vulnerability.
| Vendors | Products |
|---|---|
| Wwbn |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-27568.
