Medium severity · published Mar 12, 2025
CVE-2025-27914
An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1
5.4
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Collaboration · Zimbra
10.0.0 before 10.0.11; 9.0.0; 10.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-27914
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-27914
Release Notes
https://wiki.zimbra.com/wiki/Zimbra_Releases/10.0.11#Security_Fixes
Technical Description
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
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