Groundhogg < 4.7.2 - Open Redirect via 'redirect_to' Parameter
Priority LOW 21CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-601.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0029 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Groundhogg — CRM, Newsletters, and Marketing Automation (Unknown): 4.7.2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 | Groundhogg — CRM, Newsletters, and Marketing Automation | before 4.7.2 | 4.7.2 | Patch available | CNA |
- Groundhogg — CRM, Newsletters, and Marketing Automation VendorUnknown Affected before 4.7.2 Fixed in 4.7.2 Patch available CNA
Remediation
- Fix · CNA Groundhogg — CRM, Newsletters, and Marketing Automation (Unknown) Fixed in 4.7.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-81741
- 2026-10-03 Alias added: GHSA-m96f-c5vh-h7cm
References
Sources
- CVE-2026-81741 · CVE Program
- CVE-2026-81741 · NVD
- FIRST EPSS
- GHSA-m96f-c5vh-h7cm · GitHub Advisory Database · CC BY 4.0
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