Veille CVE
CVE-2025-48700
6.1 Moyenne Exploitée activementCatalogue CISA KEV — Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
Ajoutée le 20/04/2026 · Échéance de correction (agences US) : 23/04/2026
Action requise : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 6.1 Moyenne | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Faiblesses (CWE)
Références
- https://wiki.zimbra.com/wiki/Security_Center Release Notes
- https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy Product
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-48700 US Government Resource