Description

An issue was discovered in Zimbra Collaboration (ZCS) 8.8.15 and 9.0 and 10.0 and 10.1. A Cross-Site Scripting (XSS) vulnerability in the Zimbra Classic UI allows attackers to execute arbitrary JavaScript within the user's session, potentially leading to unauthorized access to sensitive information. This issue arises from insufficient sanitization of HTML content, specifically involving crafted tag structures and attribute values that include an @import directive and other script injection vectors. The vulnerability is triggered when a user views a crafted e-mail message in the Classic UI, requiring no additional user interaction.

INFO

Published Date :

2025-06-23T00:00:00.000Z

Last Modified :

2026-04-21T03:55:38.511Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-48700 vulnerability.

Vendors Products
Synacor
  • Zimbra Collaboration Suite
Zimbra
  • Zimbra
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-48700.

URL Resource
https://wiki.zimbra.com/wiki/Security_Center cve-icon cve-icon
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy cve-icon cve-icon
https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories cve-icon cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48700 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact