CVE-2026-29204criticalCWE-639

CVE-2026-29204: critical vulnerability in WebPros WHMCS

Published

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48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 9.1epss 0.3%
from disclosure to weapon1 day
Published on NVDMay 12
1st PoC+1d
Insufficient ownership check in `clientarea.php` allows an authenticated client area user to submit requests using another user’s `addonId` without any ownership validation leading to unauthorized access to the victim's account.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products
WebPros · WHMCS
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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