What is CVE-2025-27914?

CVE-2025-27914 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-03-12.

How severe is CVE-2025-27914?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Zimbra Collaboration

CVE-2025-27914

An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A Reflected Cross-Site Scripting (XSS) vulnerability exists in the /h/rest endpoint, allowing authenticated attackers to inject and execute arbitrary JavaScript i…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (16.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Zimbra Collaboration — versions 9.0.0, 10.1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Technical Description)
cve@mitre.org (Release Notes)

Frequently asked questions

What is CVE-2025-27914?: CVE-2025-27914 is a medium-severity vulnerability in Zimbra Collaboration, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-03-12.
How severe is CVE-2025-27914?: Medium severity. CVSS v3 base score is 5.4 out of 10.