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, 5.3.3. This is due to insufficient input sanitization and output escaping on the fingerprint value stored in the database. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views the Real-time Access Log report.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 09 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 09 Jan 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Wp-slimstat
Wp-slimstat slimstat Analytics
Vendors & Products Wordpress
Wordpress wordpress
Wp-slimstat
Wp-slimstat slimstat Analytics

Fri, 09 Jan 2026 06:45:00 +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, 5.3.3. This is due to insufficient input sanitization and output escaping on the fingerprint value stored in the database. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator views the Real-time Access Log report.
Title SlimStat Analytics <= 5.3.3 - Unauthenticated Stored Cross-Site Scripting via 'fh' Parameter
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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-01-09T19:10:42.287Z

Reserved: 2025-12-23T19:12:52.860Z

Link: CVE-2025-15057

cve-icon Vulnrichment

Updated: 2026-01-09T19:10:39.396Z

cve-icon NVD

Status : Received

Published: 2026-01-09T07:16:02.483

Modified: 2026-01-09T07:16:02.483

Link: CVE-2025-15057

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-09T13:24:01Z

Weaknesses