# CVE-2026-87900: WP Toolkit for cPanel argument injection in file handling

Source: https://junglewise.ai/threats/cve-2026-87900-argument-injection-in-wp-toolkit-for-cpanel-6-11-2-10794-and  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-23. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-87900 · Severity: info · Published 2026-09-23

WP Toolkit for cPanel is a WordPress management plugin for hosting control panels. An authenticated attacker can inject arguments into file operations to read sensitive files and execute arbitrary code, potentially compromising multiple customer accounts on a shared hosting server.

Vendors: [cPanel](https://junglewise.ai/threats/vendors/cpanel).

## Quick answers

**Is CVE-2026-87900 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87900 being exploited in the wild.

**How severe is CVE-2026-87900?** Informational severity, published 23 September 2026.

**Which products and versions are affected?** cPanel WP Toolkit for cPanel 6.11.2-10794 and earlier.

**Is there a fix for CVE-2026-87900?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-87900 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-87900?** Check whether you run cPanel WP Toolkit for cPanel 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.

## Technical details

Argument injection vulnerability in WP Toolkit for cPanel allows authenticated users to manipulate command-line arguments passed to system functions, bypassing intended restrictions on file access and code execution. The vulnerability affects versions 6.11.2-10794 and earlier and requires prior authentication but permits lateral movement across customer accounts on multi-tenant systems.

## Affected products

- cPanel WP Toolkit for cPanel 6.11.2-10794 and earlier

## Timeline

- 2026-09-23: disclosed

## References

- [https://support.cpanel.net/hc/en-us/articles/43597969409943](https://support.cpanel.net/hc/en-us/articles/43597969409943)