CVE-2026-50591 — MEDIUM (5.4)

Vulnerability Description

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

CVSS Score

5.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-79

References

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

FAQ

What is CVE-2026-50591?

CVE-2026-50591 is a vulnerability with a CVSS score of 5.4 (MEDIUM). In Znuny LTS before 6.5.21 and Znuny before 7.3.3, XSS can occur via stored user preferences.

How severe is CVE-2026-50591?

CVE-2026-50591 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-50591?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.