Vulnerability · Published Jun 5, 2026 · Assigned by mitre
CVE-2026-50592
Medium 6.4
In plain English
A medium-severity cross-site scripting in Znuny from Znuny. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.1%top 96.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | znuny | no fix listed | DEBIAN-CVE-2026-50592 |
| Debian:13 | znuny | no fix listed | DEBIAN-CVE-2026-50592 |
| Debian:14 | znuny | 6.5.21-1 | DEBIAN-CVE-2026-50592 |
| Ubuntu:22.04:LTS | otrs2 | no fix listed | UBUNTU-CVE-2026-50592 |
| Ubuntu:24.04:LTS | znuny | no fix listed | UBUNTU-CVE-2026-50592 |
| Ubuntu:25.10 | znuny | no fix listed | UBUNTU-CVE-2026-50592 |
| Ubuntu:26.04:LTS | znuny | no fix listed | UBUNTU-CVE-2026-50592 |
| Ubuntu:26.10 | znuny | no fix listed | UBUNTU-CVE-2026-50592 |
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N