CVE-2026-43883

MEDIUM EPSS 6.3%
Published May 11, 20261mo ago · Modified Jun 17, 20262w ago
4.2 CVSS 3.1
Medium
Find Similar
Published May 11, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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 authenticated user owns the agreement. A low-privilege authenticated user who learns or obtains another user's PayPal billing agreement ID can silently suspend the victim's recurring subscription, causing revenue loss to the platform and loss of paid service to the victim. Commit 0da3dcff1eda2f497694bf82b559829471c292c2 contains an updated fix.

CVSS Details

Base Score
4.2
Exploitability
1.6
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
6.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

References 2

  • github.com https://github.com/WWBN/AVideo/commit/0da3dcff1eda2f497694bf82b559829471c292c2
  • github.com https://github.com/WWBN/AVideo/security/advisories/GHSA-958h-qp3x-q4gj

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.