PT-2026-79325 · Apache · Cloudstack

CVE-2026-61399

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Published

2026-08-21

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Updated

2026-08-27

CVSS v3.1

4.8

Medium

VectorAV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions Apache CloudStack versions 4.20.0.0 through 4.20.3.0 Apache CloudStack versions 4.21.0.0 through 4.22.1.0
Description Improper encoding or escaping of output in the UI occurs when using the Lock User functionality, leading to a Cross-Site Scripting (XSS) issue. XSS is a flaw that allows an attacker to inject malicious scripts into web pages viewed by other users.
Recommendations Upgrade versions 4.20.0.0 through 4.20.3.0 to 4.20.3.1 or later. Upgrade versions 4.21.0.0 through 4.22.1.0 to 4.22.1.1 or later.

Exploit

Fix

Improper Encoding or Escaping of Output

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Weakness Enumeration

Related Identifiers

CVE-2026-61399

Affected Products

Cloudstack