What is CVE-2026-43883?

CVE-2026-43883 is a medium-severity vulnerability in Wwbn Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.2/10. Published 2026-05-11.

How severe is CVE-2026-43883?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Auth bypass in Wwbn Avideo

CVE-2026-43883

WWBN AVideo is an open source video platform. In versions up to and including 29.0, plugin/PayPalYPT/agreementCancel.json.php cancels a PayPal billing agreement using an attacker-supplied agreement parameter without verifying that the auth…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (12.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Wwbn Avideo — versions <= 29.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-43883?: CVE-2026-43883 is a medium-severity vulnerability in Wwbn Avideo, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.2/10. Published 2026-05-11.
How severe is CVE-2026-43883?: Medium severity. CVSS v3 base score is 4.2 out of 10.