CVE-2026-21789

HCL Connections is vulnerable to a cross-site scripting (XSS) attack that allows an attacker to execute arbitrary script code in the browser of an unsuspecting user. This may lead to stealing cookie-based authentication credentials and compromising user accounts.

HCL Connections is vulnerable to information disclosure, which could allow a user to obtain data they are not entitled to, caused by improper handling of request data.

HCL Connections is vulnerable to server-side request forgery (SSRF) when an internal server is compromised, possibly allowing an attacker to send unauthorized requests in certain scenarios leading to information disclosure or security bypass.

An information disclosure vulnerability in HCL Connections via a specific endpoint. In certain scenarios, this could lead to sensitive information being disclosed to unauthorized users.

An information disclosure vulnerability in HCL Connections due to improper handling of request data. A user can obtain sensitive information they are not entitled to.

A broken access control vulnerability in HCL Connections may allow an unauthorized user to view data in a single specific scenario.

HCL Connections is vulnerable to a sensitive information disclosure caused by improper rendering of application data. A user could obtain sensitive information they are not entitled to.