CVE Catalog

CVE-2026-33684

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.33%

25th percentile - higher than 25% of all known CVEs

Summary

A privilege escalation vulnerability in WWBN AVideo prior to version 29.0 allows any user who can solve a CAPTCHA to self-grant elevated permissions during registration via unguarded API parameters. Attackers can mark accounts as email-verified and obtain upload, streaming, and meeting creation rights.

Risk Assessment

Attackers can bypass administrative access controls, gaining unauthorized privileges that compromise platform integrity and confidentiality, potentially leading to resource abuse.

Recommendation

Immediately upgrade WWBN AVideo to version 29.0 or later, which includes a fix for this vulnerability.

Other vulnerabilities in WWBN AVideo

See all
Original NVD description (English source)

WWBN AVideo is an open source video platform. Prior to version 29.0, Privilege Escalation is possible through unguarded permission parameters in signUp API, which allows any user who can solve a CAPTCHA to self-grant elevated permissions during account registration. The set_api_signUp method in the API plugin accepts emailVerified, canUpload, canStream, and canCreateMeet parameters from user-supplied input and applies them to newly created accounts without verifying that the request was authenticated with a valid APISecret. By self-granting account attributes, attackers can mark their own accounts as email-verified without owning the address (bypassing email-gated functionality) and award themselves upload, streaming, and meeting-creation permissions, circumventing administrator access controls that intentionally restrict these capabilities for new users. This issue has been fixed in version 29.0

Vulnerability data from NVD (NIST) · CISA KEV · EPSS