CVE-2026-54854: WordPress Profile Builder privilege escalation in user roles

CVE-2026-54854 · Severity: medium · CVSS 6.3 · Published 2026-10-30

Profile Builder is a WordPress plugin that manages user registration and profiles. A vulnerability allows a low-privilege user (Contributor) to escalate their account to administrator, gaining complete control of the website including access to sensitive data and the ability to modify or delete content.

Technologies: Cozmoslabs Profile Builder. Vendors: Cozmoslabs.

Quick answers

Is CVE-2026-54854 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-54854 being exploited in the wild.
How severe is CVE-2026-54854?
Medium severity, with a CVSS score of 6.3, published 30 October 2026.
Which products and versions are affected?
Cozmoslabs Profile Builder versions 4.0.5 and earlier.
Is there a fix for CVE-2026-54854?
Yes: fixed in 4.0.6. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-54854 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-54854?
Check whether you run Cozmoslabs Profile Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 4.0.6

Technical details

A privilege escalation vulnerability in Profile Builder versions up to 4.0.5 allows an authenticated Contributor-level user to escalate their role to administrator. The vulnerability likely stems from improper role validation in user management functions. An attacker with Contributor access can exploit this to gain full administrative control without requiring additional network access or user interaction.

Affected products

  • Cozmoslabs Profile Builder versions 4.0.5 and earlier

Timeline

  • 2026-10-30: disclosed
  • 2026-10-30: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.