What is CVE-2026-1238?

CVE-2026-1238 is a high-severity vulnerability in Veronalabs Slimstat Analytics, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-03-19.

How severe is CVE-2026-1238?

High severity. CVSS v3 base score is 7.2 out of 10.

XSS in Veronalabs Slimstat Analytics

CVE-2026-1238

The SlimStat Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fh' (fingerprint) parameter in all versions up to, and including, 5.3.5 due to insufficient input sanitization and output escaping. This make…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (31.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.

Affected products

Veronalabs Slimstat Analytics — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.wordfence.com/threat-intel/vulnerabilities/id/e991fbdf-8e26-4d2e-8e3b-c8990…
plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.5/admin/view/right-now…
plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.5/wp-slimstat.php
plugins.trac.wordpress.org/changeset/3477417/

Frequently asked questions

What is CVE-2026-1238?: CVE-2026-1238 is a high-severity vulnerability in Veronalabs Slimstat Analytics, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-03-19.
How severe is CVE-2026-1238?: High severity. CVSS v3 base score is 7.2 out of 10.