CVE-2026-1492
User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration
- Published
- Mar 3, 2026
- Updated
- Apr 8, 2026
- Assigning CNA
- Wordfence
- Evidence observed
- Aug 25, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 98.1%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The User Registration & Membership – Custom Registration Form Builder, Custom Login Form, User Profile, Content Restriction & Membership Plugin plugin for WordPress is vulnerable to improper privilege management in all versions up to, and including, 5.1.2. This is due to the plugin accepting a user-supplied role during membership registration without properly enforcing a server-side allowlist. This makes it possible for unauthenticated attackers to create administrator accounts by supplying a role value during membership registration.
Sources
http/cves/2026/CVE-2026-1492.yaml
Nuclei TemplatesDeclared conditions
- network: http($.protocol_keys)
- verification: word($.matchers[*].type)
- CVE-2026-1492Exploit
User Registration & Membership <= 5.1.2 - Unauthenticated Privilege Escalation via Membership Registration
Responsible use
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