What is CVE-2025-13746?

CVE-2025-13746 is a medium-severity vulnerability in Ultimatemember Forumwp – Forum & Discussion Board, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-06.

How severe is CVE-2025-13746?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Ultimatemember Forumwp – Forum & Discussion Board

CVE-2025-13746

The ForumWP – Forum & Discussion Board plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User's Display Name in all versions up to, and including, 2.1.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (8.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Ultimatemember Forumwp – Forum & Discussion Board — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-13746?: CVE-2025-13746 is a medium-severity vulnerability in Ultimatemember Forumwp – Forum & Discussion Board, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2026-01-06.
How severe is CVE-2025-13746?: Medium severity. CVSS v3 base score is 6.4 out of 10.