XSS in Slimstat Analytics

CVE-2026-12592

The SlimStat Analytics WordPress plugin before 5.5.0 does not escape a visitor-controlled geolocation value before outputting it in its admin analytics reports, allowing unauthenticated visitors to store a cross-site scripting payload that executes in the browser of an administrator who views the reports. Exploitation requires the SlimStat Analytics WordPress plugin before 5.5.0 to be configured to use the Cloudflare geolocation provider.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (28.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

  • Unknown Slimstat Analytics — versions 0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-12592?
CVE-2026-12592 is a high-severity vulnerability in Slimstat Analytics, classified under Cross-site Scripting. CVSS score: 7.5/10. Published 2026-07-20.
How severe is CVE-2026-12592?
High severity. CVSS v3 base score is 7.5 out of 10.