TI-2026-10798 Aliases CVE-2026-12592 GHSA-m3j2-94qc-pfvg

SlimStat Analytics < 5.5.0 - Unauthenticated Stored XSS via CF-IPCountry Header

HIGH 68CWE-79Published 2026-07-20 · Updated 2026-07-20

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00352 29th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed SlimStat Analytics (Unknown): 5.5.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	SlimStat Analytics	before 5.5.0	5.5.0	Patch available	CNA

SlimStat Analytics VendorUnknown Affected before 5.5.0 Fixed in 5.5.0 Patch available CNA

Remediation

Fix · CNA SlimStat Analytics (Unknown) Fixed in 5.5.0

Timeline

2026-10-02 Threatist record created from CVE-2026-12592
2026-10-03 Alias added: GHSA-m3j2-94qc-pfvg

References

Exploit 1

https://wpscan.com/vulnerability/3658cae6-f6ae-4ecc-8d74-bb402e61f5d5/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences