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