CVE-2026-77506

XSS via AgentTicketEmailResend template in Znuny

Published Aug 20, 2026 CVSS 3.1 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.

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 XSS via AgentTicketEmailResend template in Znuny
Type Values Removed Values Added
Description Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
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': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 25, 2026, 7:12 PM
Reserved
Aug 20, 2026, 8:18 PM
Status
Deferred
Published
Aug 20, 2026, 9:17 PM
Modified
Oct 26, 2026, 10:10 AM