CVE-2026-21788
HCL Connections is vulnerable to cross-site scripting (XSS)
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
HCL Connections is vulnerable to a cross-site scripting attack where an attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user which leads to executing malicious script code. This may allow the attacker steal cookie-based authentication credentials and comprise user's account then launch other attacks.
| CWE | CWE-79 |
| Vendor | hclsoftware |
| Product | connections |
| Published | Mar 19, 2026 |
| Last Updated | Mar 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
HCLSoftware / Connections
8