What is CVE-2026-1191?

CVE-2026-1191 is a medium-severity vulnerability in Freemp JavaScript Notifier, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-01-24.

How severe is CVE-2026-1191?

Medium severity. CVSS v3 base score is 4.4 out of 10.

XSS in Freemp JavaScript Notifier

CVE-2026-1191

The JavaScript Notifier plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin settings in all versions up to, and including, 1.2.8. This is due to insufficient input sanitization and output escaping on user-supplied attributes in the `wp_footer` action. This makes it possible for authenticated attackers, with administrator-level access, 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 (10.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Freemp Javascript Notifier — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-1191?: CVE-2026-1191 is a medium-severity vulnerability in Freemp JavaScript Notifier, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-01-24.
How severe is CVE-2026-1191?: Medium severity. CVSS v3 base score is 4.4 out of 10.