CVE-2024-9518 - CVE House
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Status published Critical CVE-2024-9518

UserPlus <= 2.0 - Unauthenticated Privilege Escalation

Vulnerability Description

The UserPlus plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 2.0 due to insufficient restriction on the 'form_actions' and 'userplus_update_user_profile' functions. This makes it possible for unauthenticated attackers to specify their user role by supplying the 'role' parameter during a registration.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • István Márton

References

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CVE-2024-9520
UserPlus <= 2.0 - Missing Authorization via Multiple Functions
Medium 6.3
CVE-2024-9519
UserPlus <= 2.0 - Authenticated (Editor+) Registration Form Update to Privilege Escalation
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CVE-2024-52442
WordPress UserPlus plugin <= 2.0 - Privilege Escalation vulnerability
Critical 9.8

Affected Vendor

Affected Software

User registration & user profile – UserPlus
Vulnerable Versions:
0

Timeline

Official Publish: October 10th, 2024
Last Modified: April 8th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-269

MITRE ATT&CK TTPs

T1078 Valid Accounts
Persistence
T1098 Account Manipulation
Privilege Escalation
T1548 Abuse Elevation Control Mechanism
Privilege Escalation
T1222 File and Directory Permissions Modification
Defense Evasion
T1134 Access Token Manipulation
Defense Evasion