CVE-2026-81741: CWE-601 URL Redirection to Untrusted Site ('Open Redirect') in Groundhogg — CRM, Newsletters, and Marketing Automation
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.
AI Analysis
Technical Summary
The Groundhogg plugin prior to version 4.7.2 contains a CWE-601 URL redirection vulnerability. Specifically, the email preference confirmation flow fails to validate or restrict the redirect target to the same host, enabling open redirect attacks via crafted URLs. This vulnerability can be exploited without authentication.
Potential Impact
An attacker can use this vulnerability to redirect users to malicious external sites, potentially facilitating phishing or other social engineering attacks. There is no indication of direct compromise of the plugin or site beyond the redirect behavior.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, users should be cautious about links related to the email preference confirmation flow and consider implementing additional URL validation or filtering at the application or web server level.
CVE-2026-81741: CWE-601 URL Redirection to Untrusted Site ('Open Redirect') in Groundhogg — CRM, Newsletters, and Marketing Automation
Description
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.
CVSS v3.1
Score 4.7medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Groundhogg plugin prior to version 4.7.2 contains a CWE-601 URL redirection vulnerability. Specifically, the email preference confirmation flow fails to validate or restrict the redirect target to the same host, enabling open redirect attacks via crafted URLs. This vulnerability can be exploited without authentication.
Potential Impact
An attacker can use this vulnerability to redirect users to malicious external sites, potentially facilitating phishing or other social engineering attacks. There is no indication of direct compromise of the plugin or site beyond the redirect behavior.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch information is provided in the available data. Until a patch is available, users should be cautious about links related to the email preference confirmation flow and consider implementing additional URL validation or filtering at the application or web server level.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-27T11:49:03.085Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa0f7c4acd9273b49d857c1
Added to database: 09/09/2026, 06:08:04 UTC
Last enriched: 09/09/2026, 06:23:29 UTC
Last updated: 09/09/2026, 22:52:15 UTC
Views: 12
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