WebPros Plesk up to 18.0.77 Plesk XML API improper authorization

Summaryinfo

A vulnerability, which was classified as critical, was found in WebPros Plesk up to 18.0.77. This issue affects some unknown processing of the component Plesk XML API. Such manipulation leads to improper authorization. This vulnerability is referenced as CVE-2026-48614. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in WebPros Plesk up to 18.0.77. Affected by this issue is some unknown functionality of the component Plesk XML API. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at support.plesk.com. This vulnerability is handled as CVE-2026-48614 since 05/22/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 18.0.78 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-41892). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Hosting Control Software

Vendor

• WebPros

Name

• Plesk

Version

• 18.0.0
• 18.0.1
• 18.0.2
• 18.0.3
• 18.0.4
• 18.0.5
• 18.0.6
• 18.0.7
• 18.0.8
• 18.0.9
• 18.0.10
• 18.0.11
• 18.0.12
• 18.0.13
• 18.0.14
• 18.0.15
• 18.0.16
• 18.0.17
• 18.0.18
• 18.0.19
• 18.0.20
• 18.0.21
• 18.0.22
• 18.0.23
• 18.0.24
• 18.0.25
• 18.0.26
• 18.0.27
• 18.0.28
• 18.0.29
• 18.0.30
• 18.0.31
• 18.0.32
• 18.0.33
• 18.0.34
• 18.0.35
• 18.0.36
• 18.0.37
• 18.0.38
• 18.0.39
• 18.0.40
• 18.0.41
• 18.0.42
• 18.0.43
• 18.0.44
• 18.0.45
• 18.0.46
• 18.0.47
• 18.0.48
• 18.0.49
• 18.0.50
• 18.0.51
• 18.0.52
• 18.0.53
• 18.0.54
• 18.0.55
• 18.0.56
• 18.0.57
• 18.0.58
• 18.0.59
• 18.0.60
• 18.0.61
• 18.0.62
• 18.0.63
• 18.0.64
• 18.0.65
• 18.0.66
• 18.0.67
• 18.0.68
• 18.0.69
• 18.0.70
• 18.0.71
• 18.0.72
• 18.0.73
• 18.0.74
• 18.0.75
• 18.0.76
• 18.0.77

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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