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CVE-2025-27915

בינונית 5.4 מנוצלת בשטח (KEV)

ניצול פעיל מאומת — קטלוג CISA KEV

שם
Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
נוסף לקטלוג
יעד טיפול (פדרלי)
פעולה נדרשת
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

תיאור (מקור, אנגלית)

An issue was discovered in Zimbra Collaboration (ZCS) 9.0 and 10.0 and 10.1. A stored cross-site scripting (XSS) vulnerability exists in the Classic Web Client due to insufficient sanitization of HTML content in ICS files. When a user views an e-mail message containing a malicious ICS entry, its embedded JavaScript executes via an ontoggle event inside a <details> tag. This allows an attacker to run arbitrary JavaScript within the victim's session, potentially leading to unauthorized actions such as setting e-mail filters to redirect messages to an attacker-controlled address. As a result, an attacker can perform unauthorized actions on the victim's account, including e-mail redirection and data exfiltration.

מדדים

CVSS 3.1
5.4 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS — סבירות ניצול
4% (אחוזון 100) נכון ל-26/7/2026
CWE
CWE-79

מוצרים מושפעים

synacor: zimbra collaboration suite

קישורים