Improper access control in CAPTCHA - CVE-2026-3214
Published: February 27, 2026
Vulnerability identifier: #VU123321
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3214
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the affected module does not sufficiently invalidate used security tokens under certain scenarios. A remote attacker can bypass the CAPTCHA on subsequent submissions.
Affected software
CAPTCHA
How to mitigate CVE-2026-3214
Install updates from vendor's website.
CAPTCHA - addressed in versions 1.17.0, 2.0.10