CVE-2026-50592

EUVD-2026-34783
In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in 

AdminCommunicationLog (aka the communication log administration view).
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
mitreCNA
6.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
znunyznuny
𝑥
< 6.5.21
CNA
znunyznuny
7.0.0 ≤
𝑥
< 7.3.3
CNA
Debian logo
Debian Releases
Debian Product
Codename
znuny
bookworm
no-dsa
bookworm/non-free
vulnerable
forky/non-free
6.5.21-1
fixed
sid/non-free
6.5.21-1
fixed
trixie
no-dsa
trixie/non-free
vulnerable
Common Weakness Enumeration
References
https://www.znuny.org/en/advisories/zsa-2026-10