CVE-2026-5076: ARMember Premium <= 7.3.1 - Insecure Password Reset Mechanism to Unauthenticated Privilege Escalation

Vulnerability summary

CVE-2026-5076 is a critical (CVSS 9.8) Improper Authentication vulnerability in armember armember premium – membership plugin, content restriction, member levels, user profile & user signup. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.5% of scored vulnerabilities. Fixed in 7.3.2.

Timeline

1. 02-06-2026
   PublishedVulnerability first disclosed.
2. 02-06-2026
   Last modifiedVulnerability information updated.

Description

The ARMember Premium plugin for WordPress is vulnerable to an insecure password reset mechanism in all versions up to, and including, 7.3.1. The plugin stores a plaintext copy of the password reset key in the `arm_reset_password_key` user meta field when a user requests a password reset. This is in addition to the hashed key that WordPress core stores securely in `wp_users.user_activation_key`. The plaintext key stored in `wp_usermeta` can be used with the plugin's custom `armrp` reset action to set a new password for any user. Combined with another vulnerability such as SQL Injection (CVE-2026-5073, CVE-2026-5074), this makes it possible for unauthenticated attackers to extract the plaintext reset key and take over any user account, including administrators.

• CWE-287Improper AuthenticationWhen an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.