What is CVE-2026-90552?

CVE-2026-90552 is a medium-severity vulnerability in Wwbn Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-12.

How severe is CVE-2026-90552?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Wwbn Avideo

CVE-2026-90552

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate playlist ownership in the Playlists_schedules/list.json.php and Live/calendar.json.php endpoints, allowing authenticated and unauthenticated users to read private playlist schedule metadata. Attackers with canStream privileges or no authentication can retrieve schedule names, descriptions, timestamps, and playlist identifiers by querying these endpoints without ownership checks.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-09-12 · last modified 2026-09-15.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.2th percentile), scored 2026-10-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

github.com/WWBN/AVideo/security/advisories/GHSA-f4q2-49rm-rxh7 (vendor-advisory)
www.vulncheck.com/advisories/wwbn-avideo-missing-authorization-via-playlists-sc… (third-party-advisory)

Frequently asked questions

What is CVE-2026-90552?: CVE-2026-90552 is a medium-severity vulnerability in Wwbn Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-12.
How severe is CVE-2026-90552?: Medium severity. CVSS v3 base score is 4.3 out of 10.