WordPress security changelog
HIGH CVE-2026-6433 Deferred

Custom css-js-php: A security weakness

Custom css-js-php is affected by a security weakness. The vulnerable path is reachable without authentication. The resulting impact depends on how the affected component exposes the vulnerable operation. The published affected range is 2.0.7 through 2.0.7.

CVE / CNA score 7.3 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
Custom css-js-php
Plugin slug
custom-css-js-php
Affected
2.0.7 through 2.0.7
Safe version
> 2.0.7
Published
May 11, 2026
Weakness
Not assigned

This CVE was published May 11, 2026 and is one of 2 known issues for this plugin.

Update, patch or deactivate.

Update Custom css-js-php to a release after 2.0.7, or disable and remove it until a fixed version is available.

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 Custom css-js-php WordPress plugin through 2.0.7 does not properly sanitize user input before using it in a SQL query, and the result is passed to eval(), allowing unauthenticated users to execute arbitrary PHP code on the server.

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

Primary and upstream sources