What is the severity of CVE-2025-27914?

CVE-2025-27914 has a medium severity rating due to its potential for authenticated exploitation through Cross-Site Scripting.

How do I fix CVE-2025-27914?

To fix CVE-2025-27914, update Zimbra Collaboration (ZCS) to the latest patched version that resolves this vulnerability.

Who is affected by CVE-2025-27914?

CVE-2025-27914 affects users of Zimbra Collaboration Suite versions 9.0 to 10.1.

What type of vulnerability is CVE-2025-27914?

CVE-2025-27914 is a Reflected Cross-Site Scripting (XSS) vulnerability that allows execution of arbitrary JavaScript.

Can CVE-2025-27914 be exploited without authentication?

No, exploiting CVE-2025-27914 requires an authenticated session with a valid auth token.

Vulnerability/
CVE-2025-27914

medium

5.4

CWE

EPSS

0.027%

12/3/2025

2/4/2025

CVE-2025-27914: XSS

First published: Wed Mar 12 2025(Updated: )

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 in a victim's session. Exploitation requires a valid auth token and involves a crafted URL with manipulated query parameters that triggers XSS when accessed by a victim.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Zimbra Collaboration Suite	>=9.0<=10.1
Zimbra Collaboration Suite	>=10.0.0<10.0.11
Zimbra Collaboration Suite	=9.0.0
Zimbra Collaboration Suite	=10.1.0

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Frequently Asked Questions

What is the severity of CVE-2025-27914?
CVE-2025-27914 has a medium severity rating due to its potential for authenticated exploitation through Cross-Site Scripting.
How do I fix CVE-2025-27914?
To fix CVE-2025-27914, update Zimbra Collaboration (ZCS) to the latest patched version that resolves this vulnerability.
Who is affected by CVE-2025-27914?
CVE-2025-27914 affects users of Zimbra Collaboration Suite versions 9.0 to 10.1.
What type of vulnerability is CVE-2025-27914?
CVE-2025-27914 is a Reflected Cross-Site Scripting (XSS) vulnerability that allows execution of arbitrary JavaScript.
Can CVE-2025-27914 be exploited without authentication?
No, exploiting CVE-2025-27914 requires an authenticated session with a valid auth token.

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