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Critical 9.9Published Jul 6, 2026

CVE-2026-48614An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root and full privilege es…

Updated under an hour ago ()

Does this affect you?

It affects WebPros Plesk. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbitrary configuration directives, resulting in arbitrary file write as root and full privilege escalation on the underlying server.

CVSS
9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
hackerone
NVD analysis
Deferred
Record last updated
Jul 6, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
WebPros Plesk
webpros:plesk (from the name)
before 18.0.78
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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CVE-2026-48614: An improper authorization vulnerability in the Plesk XML API allows an authenticated user to inject arbi | InfoSec Signals