CVE-2026-90977CWE-697

CVE-2026-90977

Medium · published September 18, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
30.2
In the wild
Unconfirmed
What it is

The Clean Login WordPress plugin before 1.19 does not verify its registration CAPTCHA when the stored session value is empty, allowing unauthenticated users to bypass the anti-automation control on the registration form and create accounts without solving it.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00374 · 30.2th percentile
Weakness
CWE-697 · Incorrect Comparison
Published
2026-09-18T11:16Z
References (1)
https://wpscan.com/vulnerability/368db83e-ed7b-4f67-99db-2e5f1c01568e/ · [email protected]
EPSS history
Timeline
  • 19 SEP 03:55Z
    EPSS moved — → 0%
    epss
  • 18 SEP 06:11Z
    Clean Login < 1.19 - Unauthenticated CAPTCHA Bypass via Empty Session Comparison
    cvelistv5