The PS PHPCaptcha WP plugin before v1.2.0 for WordPress mishandles sanitization of input values.
https://wordpress.org/plugins/ps-phpcaptcha/#developers
https://metamorfosec.com/Files/Advisories/METS-2019-003-Denial_of_Service_in_PS_PHPCaptcha_WP_before_v1.2.0.txt
Source: Mitre, NVD
Published: 2019-02-05
Updated: 2026-06-17
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.00841