WordPress security changelog
HIGH CVE-2026-6933 Deferred

Premmerce Dev Tools: Code execution

Premmerce Dev Tools is affected by code execution. Exploitation requires at least subscriber-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account. The published affected range is <= 2.0.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Premmerce Dev Tools
Plugin slug
premmerce-dev-tools
Affected
<= 2.0
Safe version
> 2.0
Published
Jun 16, 2026
Weakness
CWE-434 — Unrestricted Upload of File with Dangerous Type

This CVE was published Jun 16, 2026 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

Update Premmerce Dev Tools to a release after 2.0, 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.

Source record

Technical description

The Premmerce Dev Tools plugin for WordPress is vulnerable to Remote Code Execution via missing authorization in versions up to and including 2.0. This is due to the 'generatePluginHandler' function lacking any authorization check before processing user-supplied POST data, combined with the 'createFromStub' function performing unsanitized string substitution of the 'premmerce_plugin_namespace' parameter directly into PHP stub files written to the wp-content/plugins/ directory. An attacker can inject a semicolon followed by arbitrary PHP code into the namespace parameter, causing the generated plugin file to contain and execute that code when accessed via HTTP. This makes it possible for authenticated attackers with Subscriber-level access and above to create arbitrary PHP files on the server and achieve remote code execution.

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

References

Primary and upstream sources