What’s Vulnerable › Vulnerabilities

CVE-2026-33039: AVideo vulnerable to unauthenticated SSRF via HTTP redirect bypass in LiveLinks proxy

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-20 · updated 2026-06-17
• Weakness: CWE-918

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.

Affected products

• WWBN AVideo: before 26.0 — fixed in 26.0

How to fix

Upgrade to a fixed version: WWBN AVideo 26.0. Check the vendor advisory for mitigations.

References

• https://github.com/WWBN/AVideo/commit/0e56382921fc71e64829cd1ec35f04e338c70917
• https://github.com/WWBN/AVideo/security/advisories/GHSA-9x67-f2v7-63rw
• https://github.com/WWBN/AVideo/security/advisories/GHSA-9x67-f2v7-63rw

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