CVE-2026-50591

Stored XSS via User Preferences in Znuny

Published Jun 5, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Stored XSS via User Preferences in Znuny
Type Values Removed Values Added
Description IN Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences. In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.
Type Values Removed Values Added
Description IN Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.
First Time appeared Znuny
Znuny znuny
Weaknesses CWE-79
CPEs cpe:2.3:a:znuny:znuny:*:*:*:*:*:*:*:*
Vendors & Products Znuny
Znuny znuny
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Jun 5, 2026, 6:23 PM
Reserved
Jun 5, 2026, 1:51 AM
Status
Deferred
Published
Jun 5, 2026, 2:17 AM
Modified
Oct 6, 2026, 10:10 PM