Quick answers
- Is CVE-2026-87898 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-87898 being exploited in the wild.
- How severe is CVE-2026-87898?
- Informational severity, published 23 September 2026.
- Which products and versions are affected?
- Plesk Plesk.
- Is there a fix for CVE-2026-87898?
- 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-2026-87898 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-87898?
- Check whether you run Plesk. 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
An OS command injection flaw in Plesk allows authenticated remote users to inject arbitrary shell commands that are executed with root privileges. The vulnerability requires authentication to the Plesk control panel and permits complete system compromise. A public fix status is not confirmed from the available advisory content.
Affected products
- Plesk Plesk
Timeline
- 2026-09-23: disclosed