Vulnerability in Case-themes Case Theme User

CVE-2025-5821

The Case Theme User plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 1.0.3. This is due to the plugin not properly logging in a user with the data that was previously verified through the fa…

EPSS: 0.004 (63.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-5821?
CVE-2025-5821 is a critical-severity vulnerability in Case-themes Case Theme User, classified under Authentication Bypass Using an Alternate Path or Channel. CVSS score: 9.8/10. Published 2025-08-23.
How severe is CVE-2025-5821?
Critical severity. CVSS v3 base score is 9.8 out of 10.