Insufficient ownership check in clientarea.php allows an authenticated client area user to submit requests using another user’s addonId without any...
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NLow · next 30 days
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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.
Provides community notes and an optional temporary hook to guard against CVE-2026-29204, a WHMCS client area addonId ownership vulnerability, with upgrade guidance.
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