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CVE-2026-43879
MEDIUM · CVSS 5.4
EPSS exploitation probability: 0%
Published 2026-05-11T22:22:12.390 · Last modified 2026-06-17T10:50:01.040

Summary

WWBN AVideo is an open source video platform. In versions up to and including 29.0, an authenticated user can configure their own donation-notification webhook URL to point at internal/loopback/metadata hosts (e.g. http://127.0.0.1:8080/..., http://169.254.169.254/latest/..., RFC1918 addresses). When any other user (including a second account owned by the same attacker) donates even a trivial amount via plugin/CustomizeUser/donate.json.php, the AVideo server issues a curl POST to the attacker-supplied URL, resulting in a blind SSRF. The handler uses only isValidURL() (which is a format check) and does not call the codebase's own isSSRFSafeURL() helper. Additionally, CURLOPT_FOLLOWLOCATION is enabled with no per-hop revalidation, so even if the stored URL were validated, an HTTP 307 from an

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.