Open Redirect in Groundhogg — Crm, Newsletters, And Marketing Automation

CVE-2026-81741

The Groundhogg — CRM, Newsletters, and Marketing Automation WordPress plugin before 4.7.2 does not restrict the redirect target of its email preference confirmation flow to the site's own host, allowing unauthenticated attackers to redirect visitors to an arbitrary external URL by way of a crafted link.

Vulnerability class: Open Redirect

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-81741: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Groundhogg — Crm, Newsletters, And Marketing Automation

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-81741?
CVE-2026-81741 is a medium-severity vulnerability in Groundhogg — Crm, Newsletters, And Marketing Automation, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2026-09-09.
How severe is CVE-2026-81741?
Medium severity. CVSS v3 base score is 4.7 out of 10.