WordPress security changelog
HIGH CVE-2026-76548 Deferred

User Profile Builder grants privileged media capabilities to visitors

User Profile Builder before 4.0.1 does not properly restrict its front-end file-upload feature. An unauthenticated visitor can gain capabilities reserved for privileged users, list the media library, and modify unpublished posts, pages, and media items owned by other accounts.

CVE / CNA score 8.2 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
User Profile Builder
Plugin slug
user-profile-builder
Affected
3.8.1 to < 4.0.1
Safe version
4.0.1
Published
Aug 29, 2026
Weakness
CWE-287 — Improper Authentication

This CVE was published Aug 29, 2026 and is one of 8 known issues for this plugin.

Update, patch or deactivate.

Update to 4.0.1 or later and review media-library access and changes to unpublished content.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical description

The User Profile Builder WordPress plugin before 4.0.1 does not properly restrict its front-end file upload feature, granting unauthenticated visitors capabilities reserved to privileged roles. This allows them to list the site's media library and to modify unpublished posts, pages and media items belonging to other users.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

Primary and upstream sources