Vulnerability Report

CVE-2026-1238

Title: Stored Cross-Site Scripting in SlimStat Analytics plugin

XSS

Proof Of Concept

PoC Available for CVE-2026-1238

CWE Category CWE-79

Published Date Mar 19, 2026

Modified Date Apr 22, 2026

Exploit Status Available

Score 7.2 CVSS v3.1

Exploit Probability (EPSS)

0.26%

Vulnerability Summary

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

Impacted Vendors

Analysis in Progress...

Reference Links

https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.5/admin/view/right-now.php#L185 https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.3.5/wp-slimstat.php#L1948 https://plugins.trac.wordpress.org/changeset/3477417/ https://www.wordfence.com/threat-intel/vulnerabilities/id/e991fbdf-8e26-4d2e-8e3b-c8990914dcad?source=cve

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.2

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-1238 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/mrk336/Breaking-AWS-IAM-Privilege-Escalation-via-Mis-Evaluated-Policy-Conditions-CVE-2026-1238-

View Code

April 22, 2026 MODIFIED