CVE-2021-27786: Hcltech Onetest Server

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Cross-origin resource sharing (CORS) enables browsers to perform cross domain requests in a controlled manner. This request has an Origin header that identifies the domain that is making the initial request and defines the protocol between a browser and server to see if the request is allowed. An attacker can take advantage of this and possibly carry out privileged actions and access sensitive information when the Access-Control-Allow-Credentials is enabled.

Affected products

• Hcltech Onetest Server: version 10.0 only; version 10.1 only; version 10.2 only

Published 2022-06-09. Last modified 2026-06-17.