Missing Authorization in AVideo - CVE-2026-33684
Published: November 11, 2026
Vulnerability identifier: #VU165925
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33684
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to self-grant upload, streaming, and meeting creation permissions and bypass email verification.
The vulnerability exists due to missing authorization in AVideo's API plugin set_api_signUp method when applying user-supplied account permissions without validating APISecret. A remote attacker can submit a registration request with a valid CAPTCHA and emailVerified=1, canUpload=1, canStream=1, and canCreateMeet=1 to create an account with elevated permissions and verified email status.
Affected software
AVideo
How to mitigate CVE-2026-33684
Install security update from vendor's website.
AVideo - update to 28.0