CVE-2022-26156: Cherwell Service Management

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in the web application in Cherwell Service Management (CSM) 10.2.3. Injection of a malicious payload within the RelayState= parameter of the HTTP request body results in the hijacking of the form action. Form-action hijacking vulnerabilities arise when an application places user-supplied input into the action URL of an HTML form. An attacker can use this vulnerability to construct a URL that, if visited by another application user, will modify the action URL of a form to point to the attacker's server.

Affected products

• Cherwell Cherwell Service Management: version 10.2.3 only

Published 2022-02-28. Last modified 2026-06-17.