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Incorrect database cloning process in Plesk from 18.0.52 before 18.0.79.6 and 18.0.80.2 allows a low-privileged user (customer, reseller) to execute arbitrary code on behalf of the database server administrator.
Improper neutralization in the Plesk XML-RPC API allows a remote authenticated low-privileged user to perform SQL injection and read arbitrary data from the Plesk database, leading to full compromise of the panel.
Plesk contains an XPath injection vulnerability in the APS Application Catalog search functionality, where user-supplied input is interpolated into XPath queries without proper sanitization. This allows an authenticated, low-privileged user to execute arbitrary operating system commands on the server, resulting in local privilege escalation.
An SQL injection vulnerability in Plesk Obsidian up to 18.0.80 for Linux and Windows allows an authenticated user to read arbitrary data from the panel database.
Improper privilege management in the XML-RPC API of Plesk before 18.0.80, allows an authenticated reseller to obtain an administrative session for the root user account.
End of life: 10/27/2026, Latest version: 18.0.80.3
Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the getpassword.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.
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.
End of life: 9/23/2026, Latest version: 18.0.79.7
Plesk Obsidian allows a CSRF attack, e.g., via the /api/v2/cli/commands REST API to change an Admin password. NOTE: Obsidian is a specific version of the Plesk product: version numbers were used through version 12, and then the convention was changed so that versions are identified by names ("Obsidian"), not numbers.
End of life: 8/4/2026, Latest version: 18.0.78.5
End of life: 6/23/2026, Latest version: 18.0.77.5
End of life: 5/11/2026, Latest version: 18.0.76.6
Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS) condition. The vulnerability exists in the getpassword.php endpoint, where a crafted request containing a malicious payload can cause the affected web interface to continuously reload, rendering the service unavailable to legitimate users. An attacker can exploit this issue remotely without authentication, resulting in a persistent availability impact on the affected Plesk Obsidian instance.
Plesk 18.0 has Incorrect Access Control.
End of life: 3/31/2026, Latest version: 18.0.75.1
End of life: 2/3/2026, Latest version: 18.0.74.3
End of life: 12/23/2025, Latest version: 18.0.73.5
In Plesk Obsidian 18.0.70, isAdminPasswordValid uses an == comparison. Thus, if the correct password is "0e" followed by any digit string, then an attacker can login with any other string that evaluates to 0.0 (such as the 0e0 string). This occurs in admin/plib/LoginManager.php.
End of life: 11/11/2025, Latest version: 18.0.72.3
End of life: 9/30/2025, Latest version: 18.0.71.2
In Plesk Obsidian 18.0.69, unauthenticated requests to /loginup.php can reveal an AWS accessKeyId, secretAccessKey, region, and endpoint.
End of life: 8/19/2025, Latest version: 18.0.70.4
End of life: 7/8/2025, Latest version: 18.0.69.4
DISPUTED A Host Header Injection issue on the Login page of Plesk Obsidian through 18.0.49 allows attackers to redirect users to malicious websites via a Host request header. NOTE: the vendor's position is "the ability to use arbitrary domain names to access the panel is an intended feature."
End of life: 5/27/2025, Latest version: 18.0.68.2
End of life: 4/15/2025, Latest version: 18.0.67.3
End of life: 3/4/2025, Latest version: 18.0.66.2
End of life: 3/4/2025, Latest version: 18.0.66.2
End of life: 1/21/2025, Latest version: 18.0.65.2