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Vulnerability record · CVE-2025-15055 · published 9 January 2026

CVE-2025-15055: Cross-site scripting vulnerability

The SlimStat Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'notes' and 'resource' parameters in all versions up to, and including, 5.3.4 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 an administrator accesses the Recent Custom Events report.

7.2 CVSS 3.1 High EPSS 0.28% · top 81.8% CWE-79 · Cross-site scripting Deferred
7.2CVSS 3.1 base score
0.28%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The SlimStat Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'notes' and 'resource' parameters in all versions up to, and including, 5.3.4 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 an administrator accesses the Recent Custom Events report.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References

LinkTags
https://plugins.trac.wordpress.org/changeset/3429990/wp-slimstat
https://www.wordfence.com/threat-intel/vulnerabilities/id/afbfabfc-b923-4fe9-9e8f-0cf159f488db?source=cve

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Source: NIST National Vulnerability Database (record CVE-2025-15055), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.