Membership Plugin – Restrict Content <= 3.2.24 - Unvalidated Redirect in Password Reset Flow via rcp_redirect

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Summary

CVECVE-2026-4136
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-20 04:16:50 UTC
Updated2026-04-22 21:32:08 UTC
DescriptionThe Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Unvalidated Redirect in all versions up to, and including, 3.2.24. This is due to insufficient validation on the redirect url supplied via the 'rcp_redirect' parameter. This makes it possible for unauthenticated attackers to redirect users with the password reset email to potentially malicious sites if they can successfully trick them into performing an action.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

EPSS: 0.000390000 probability, percentile 0.116920000 (date 2026-04-22)

Problem Types: CWE-640 | CWE-640 CWE-640 Weak Password Recovery Mechanism for Forgotten Password

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Stellarwp Membership Plugin Restrict Content affected 3.2.24 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.24/core/includes/login-func... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/e4cf42d3-9864-440b-8357-36c82... [email protected] www.wordfence.com
plugins.trac.wordpress.org/changeset/3486071/restrict-content [email protected] plugins.trac.wordpress.org
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: Supakiad S. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-03-13T15:06:37.000ZVendor Notified
CNA2026-03-19T14:37:52.000ZDisclosed
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