#VU123321 Improper access control in CAPTCHA - CVE-2026-3214
Published: February 27, 2026
Vulnerability identifier: #VU123321
Vulnerability risk: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-3214
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
CAPTCHA
CAPTCHA
Software vendor:
wundo
wundo
Description
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.
Remediation
Install updates from vendor's website.