WPCOM Member <= 1.5.2.1 - Unauthenticated Privilege Escalation via User Meta

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-7493
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-09-06 14:15:12 UTC
Updated2026-04-08 19:22:18 UTC
DescriptionThe WPCOM Member plugin for WordPress is vulnerable to privilege escalation in all versions up to, and including, 1.5.2.1. This is due to the plugin allowing arbitrary data to be passed to wp_insert_user() during registration. This makes it possible for unauthenticated attackers to update their role to that of an administrator during registration.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from [email protected]

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

EPSS: 0.011300000 probability, percentile 0.783200000 (date 2026-04-13)

Problem Types: CWE-269 | NVD-CWE-noinfo | CWE-269 CWE-269 Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Wpcom Wpcom Member All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Whyun WPCOM Member affected 1.5.2.1 semver Not specified
ADP Wpcom Wpcom-member affected 1.5.2.1 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/changeset/3147399/wpcom-member/trunk/includes/form-validation... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/wpcom-member/tags/1.5.2/includes/form-validation.php [email protected] plugins.trac.wordpress.org Issue Tracking
www.wordfence.com/threat-intel/vulnerabilities/id/ec7f3e0c-a07c-4082-9b6b-12d0f... [email protected] www.wordfence.com Third Party Advisory
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: wesley (en)

Additional Advisory Data

SourceTimeEvent
CNA2024-09-06T01:15:44.000ZDisclosed

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