CVE-2026-33039 AVideo vulnerable to unauthenticated SSRF via HTTP redirect bypass in LiveLinks proxy
Unauthenticated attackers can bypass SSRF protections in AVideo's LiveLinks proxy via HTTP redirects to access internal network resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33039?
CVE-2026-33039 is a high-severity server-side request forgery vulnerability in Wwbn Avideo, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
WWBN AVideo is an open source video platform. In versions 25.0 and below, the plugin/LiveLinks/proxy.php endpoint validates user-supplied URLs against internal/private networks using isSSRFSafeURL(), but only checks the initial URL. When the initial URL responds with an HTTP redirect (Location header), the redirect target is fetched via fakeBrowser() without re-validation, allowing an attacker to reach internal services (cloud metadata, RFC1918 addresses) through an attacker-controlled redirect. This issue is fixed in version 26.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-33039?
2 open source packages ship an affected version, including wwbn/avideo. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
wwbn/avideo Packagist | All versions to 25.0 | None |
wwbn/avideo Packagist | All versions to 25.0 | None |
Products include Wwbn Avideo.
How do I fix CVE-2026-33039?
No fix has been published for CVE-2026-33039 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-33039 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-33039 exists.
Other vulnerabilities in Wwbn Avideo
- CVE-2026-40911 WWBN AVideo YPTSocket WebSocket Broadcast Relay Leads to Unauthenticated Cross-User JavaScript Execution via Client-Side eval() Sinks
- CVE-2026-33478 AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure, Database Dump, and Command Injection
- CVE-2022-30534 Command injection in AVideo
- CVE-2022-30547 Path traversal in AVideo
- CVE-2022-32572 Command injection in AVideo
Sources
Also known as GHSA-9x67-f2v7-63rw.