CVE-2026-21788

Description

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.

PUBLISHED Reserved 2026-01-05 | Published 2026-03-19 | Updated 2026-03-19 | Assigner HCL

Problem types

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

Product status

References

support.hcl-software.com/...rticle&sysparm_article=KB0129107

cve.org (CVE-2026-21788)

nvd.nist.gov (CVE-2026-21788)

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