CVE-2026-81660

8.8 highEPSS 0.5%

High (8.8). EPSS 0.5% chance of exploitation in the next 30 days.

The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.5.13 does not validate or escape values submitted to some optional web form fields before storing them and outputting them back in an administrative area, allowing unauthenticated users to perform Stored Cross-Site Scripting attacks against high privilege users.

Severity

CVSS 3.1

8.8 high

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

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 43% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-08-30
Modified: 2026-08-31
Record from: the NVD, synced 2026-10-19

References

https://wpscan.com/vulnerability/cfdb4107-6010-4c29-baf3-3111765f48c2/

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