Cross-Site Scripting Vulnerability in HCL Connections Software
CVE-2026-21788

5.4MEDIUM

Key Information:

Vendor
CVE Published:
19 March 2026

What is CVE-2026-21788?

HCL Connections features a cross-site scripting vulnerability that can be exploited by an attacker to inject and execute arbitrary script code in the browser of an unsuspecting user. This exploitation may lead to the theft of cookie-based authentication credentials, compromising user accounts and potentially enabling further malicious attacks. Users are urged to apply the latest updates to protect their systems from these types of security threats.

Affected Version(s)

Connections 8

References

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.