CVE-2026-77506

EUVD-2026-63586
Znuny before LTS 6.5.22 allows AgentTicketEmailResend template XSS.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
4.8 MEDIUM
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
znunyznuny
6.0 ≤
𝑥
< 6.5.22
CNA
Common Weakness Enumeration
References
https://www.znuny.org/en/advisories/zsa-2026-12