CVE-2026-7634SlimStat Analytics <= 5.4.11 - Unauthenticated Stored Cross-Site Scripting via User-Agent Header
Updated under an hour ago ()
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The SlimStat Analytics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'User-Agent' header in all versions up to, and including, 5.4.11 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. The show_complete_user_agent_tooltip setting must be explicitly enabled by an administrator (disabled by default) for the stored payload to be rendered and executed.
- CVSS
- 7.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- May 28, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
veronalabs SlimStat Analytics veronalabs:slimstat_analytics (from the name) | through 5.4.11 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0a309bf8-7fe3-4033-993c-3c8dba0f216d?source=cve
- https://plugins.trac.wordpress.org/browser/wp-slimstat/trunk/admin/view/wp-slimstat-reports.php#L2099
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.11/admin/view/wp-slimstat-reports.php#L2099
- https://plugins.trac.wordpress.org/browser/wp-slimstat/trunk/src/Tracker/Storage.php#L25
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.11/src/Tracker/Storage.php#L25
- https://plugins.trac.wordpress.org/browser/wp-slimstat/trunk/src/Tracker/Processor.php#L776
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.11/src/Tracker/Processor.php#L776
- https://plugins.trac.wordpress.org/browser/wp-slimstat/trunk/src/Services/Browscap.php#L270
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.11/src/Services/Browscap.php#L270
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.4/admin/view/wp-slimstat-reports.php#L2099
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.4/src/Tracker/Storage.php#L25
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.4/src/Tracker/Processor.php#L776
- https://plugins.trac.wordpress.org/browser/wp-slimstat/tags/5.4.4/src/Services/Browscap.php#L270
- https://github.com/wp-slimstat/wp-slimstat/pull/297
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.