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 makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
History

Thu, 19 Mar 2026 05:00:00 +0000

Type Values Removed Values Added
Description 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 makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title SlimStat Analytics <= 5.3.5 - Unauthenticated Stored Cross-Site Scripting via 'fh'
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-03-19T04:27:29.705Z

Reserved: 2026-01-20T17:06:15.495Z

Link: CVE-2026-1238

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-19T05:15:59.567

Modified: 2026-03-19T05:15:59.567

Link: CVE-2026-1238

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.