Groundhogg < 4.7.2 - Open Redirect via 'redirect_to' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-81741
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-09 06:17:17 UTC
Updated2026-09-09 16:17:10 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from ADP

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

EPSS: 0.001360000 probability, percentile 0.033880000 (date 2026-09-09)

Problem Types: CWE-601 | CWE-601 URL Redirection to Untrusted Site ('Open Redirect') | CWE-601 CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary4.7MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Groundhogg CRM Newsletters And Marketing Automation affected 4.7.2 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/4bfdee51-f2d0-4549-a9b4-5f4e11f2de4c [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Yaswanth Reddy Sunkara (en)

CNA: WPScan (en)

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