What is CVE-2026-89251?

CVE-2026-89251 is a medium-severity vulnerability in Wwbn Avideo, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2026-09-11.

How severe is CVE-2026-89251?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Wwbn Avideo

CVE-2026-89251

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to validate ad impressions in plugin/AD_Server/log.php, allowing logged-in users to submit arbitrary label values that trigger unverified wallet credits to campaign video owners. Attackers can repeatedly POST label=start requests to mint YPTWallet balance for any campaign video without proof an ad actually played.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-89251?: CVE-2026-89251 is a medium-severity vulnerability in Wwbn Avideo, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.5/10. Published 2026-09-11.
How severe is CVE-2026-89251?: Medium severity. CVSS v3 base score is 6.5 out of 10.