CVE-2026-50591

In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.

CVSS 3.1

5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.1% chance of exploitation in the next 30 days; higher than 2% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-06-05

Modified

2026-10-06

Record from

the NVD, synced 2026-10-19

References

• https://www.znuny.org/en/advisories/zsa-2026-11

Check your stackJSON