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CVE-2023-6009VulnerabilityPublished Updated

CVE-2023-6009: UserPro (WordPress plugin) · Incorrect Privilege Assignment

Affects UserPro (WordPress plugin)Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 60% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Nov 2023

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
n/a UserPro - Community and User Profile WordPress PluginAffected
  • *
Fixed in–

AI-suggested

European organizations should immediately audit their WordPress installations to identify the presence of the UserPro plugin and verify the version in use. Until an official patch is released, the following specific mitigations are recommended: 1) Restrict user registrations and profile update capabilities to trusted users only, minimizing the number of accounts with subscriber-level access; 2) Implement Web Application Firewall (WAF) rules to detect and block requests attempting to modify the 'wp_capabilities' parameter during profile updates; 3) Employ strict role-based access control (RBAC) policies and monitor user role changes through logging and alerting mechanisms; 4) Temporarily disable or remove the UserPro plugin if it is not essential or if alternative plugins with better security posture are available; 5) Keep WordPress core and all plugins updated and subscribe to security advisories from plugin developers and trusted sources; 6) Conduct regular security audits and penetration tests focusing on privilege escalation vectors; 7) Educate site administrators on monitoring unusual user behavior and promptly investigating suspicious privilege changes.

Description

The UserPro plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.1.4 due to insufficient restriction on the 'userpro_update_user_profile' 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.

References

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