CVE-2026-0844: CWE-284 Improper Access Control in nmedia Simple User Registration
The Simple User Registration plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 6.7 due to insufficient restriction on the 'profile_save_field' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'wp_capabilities' parameter during a profile update.
AI Analysis
Technical Summary
The Simple User Registration WordPress plugin contains an improper access control vulnerability (CWE-284) in the 'profile_save_field' function. Authenticated users with low-level permissions can exploit this flaw by supplying the 'wp_capabilities' parameter when updating their profile, enabling them to escalate their privileges and gain higher-level roles. This vulnerability affects all versions up to and including 6.7. The CVSS 3.1 base score is 8.8, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated attacker with minimal permissions to escalate their privileges, potentially gaining administrative control over the WordPress site. This can lead to full site compromise, including unauthorized data access, modification, and disruption of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict plugin usage to trusted users only or disable the plugin if possible. Monitor for updates from the vendor or WordPress plugin repository regarding patches or mitigations.
CVE-2026-0844: CWE-284 Improper Access Control in nmedia Simple User Registration
Description
The Simple User Registration plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 6.7 due to insufficient restriction on the 'profile_save_field' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'wp_capabilities' parameter during a profile update.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Simple User Registration WordPress plugin contains an improper access control vulnerability (CWE-284) in the 'profile_save_field' function. Authenticated users with low-level permissions can exploit this flaw by supplying the 'wp_capabilities' parameter when updating their profile, enabling them to escalate their privileges and gain higher-level roles. This vulnerability affects all versions up to and including 6.7. The CVSS 3.1 base score is 8.8, reflecting network attack vector, low attack complexity, low privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an authenticated attacker with minimal permissions to escalate their privileges, potentially gaining administrative control over the WordPress site. This can lead to full site compromise, including unauthorized data access, modification, and disruption of service.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict plugin usage to trusted users only or disable the plugin if possible. Monitor for updates from the vendor or WordPress plugin repository regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-01-10T14:13:05.549Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6979f49d4623b1157cb36515
Added to database: 1/28/2026, 11:35:57 AM
Last enriched: 4/16/2026, 11:28:00 AM
Last updated: 5/9/2026, 9:11:52 PM
Views: 79
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