PT-2026-26279 · Hcl · Hcl Connections

Published 2026-03-19 · Updated 2026-03-23 · CVE-2026-21788

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions HCL Connections (affected versions not specified)

Description HCL Connections is susceptible to a cross-site scripting attack. An attacker can exploit this to execute arbitrary script code within a user's browser. Successful exploitation may allow the attacker to steal cookie-based authentication credentials and compromise user accounts, potentially leading to further attacks.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-21788

Affected Products

Hcl Connections

References · 4

• https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129107 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21788 · Security Note
• https://twitter.com/VulmonFeeds/status/2034616301969186925 · Twitter Post
• https://twitter.com/CVEnew/status/2036024219604291633 · Twitter Post