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Fencer Intel
medium 6.4

CVE-2026-50592 json

In Znuny LTS before 6.5.21 and Znuny before 7.3.3, there is reflected XSS in AdminCommunicationLog (aka the communication log administratio…

published 5mo ago modified last mo. also EUVD-2026-34783

cvss
6.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 4%
public exploits
0
none known

Summary

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).

Patch / fix

  • Znuny Znuny 6.5.21, 7.3.3
  • znuny Debian 14 6.5.21-1

debian advisories DEBIAN-CVE-2026-50592

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by version score vector
CNA 3.1 6.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Affected products

  • Znuny Znuny

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.