CVE-2025-48700

MEDIUM 6.1

⚠️ CISA KEV

CVSS Score

6.1

EPSS Score

0.2%

EPSS Percentile

40th

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.

Vendor	n/a
Product	n/a
Published	Jun 23, 2025
Last Updated	Apr 20, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories wiki.zimbra.com: https://wiki.zimbra.com/wiki/Security_Center wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48700