AVideo Exploitable Vulnerability in URL Validation Mechanism
CVE-2026-33480

8.6HIGH

Key Information:

Vendor

Wwbn

Status
Avideo
Vendor
CVE Published:
23 March 2026

What is CVE-2026-33480?

The AVideo platform, widely utilized for video hosting, has a vulnerability within the isSSRFSafeURL() function that permits attackers to bypass URL validation. This issue arises when IPv4-mapped IPv6 addresses are used, which pass all security checks. As a result, the unauthenticated service at plugin/LiveLinks/proxy.php becomes susceptible to exploitation, allowing unauthorized access to internal services, cloud metadata, and even localhost resources. A patch addressing this vulnerability is available in the code repository.

Affected Version(s)

AVideo <= 26.0

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-p...
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https://github.com/WWBN/AVideo/commit/75ce8a579a58c9d4c7a...
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CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.