CVE-2026-33512: AVideo has an unauthenticated decrypt oracle leaking any ciphertext

March 20, 2026 (updated March 25, 2026)

The API plugin exposes a decryptString action without any authentication. Anyone can submit ciphertext and receive plaintext. Ciphertext is issued publicly (e.g., view/url2Embed.json.php), so any user can recover protected tokens/metadata. Severity: High.

References

github.com/WWBN/AVideo
github.com/WWBN/AVideo/commit/3fdeecef37bb88967a02ccc9b9acc8da95de1c13
github.com/WWBN/AVideo/security/advisories/GHSA-mwjc-5j4x-r686
github.com/advisories/GHSA-mwjc-5j4x-r686
nvd.nist.gov/vuln/detail/CVE-2026-33512

Code Behaviors & Features

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