CVE-2025-27915 — Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability

描述

Synacor Zimbra Collaboration Suite (ZCS) contains a cross-site scripting vulnerability that 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 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.

如何修補 CVE-2025-27915

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CVE-2025-27915 正在被利用嗎?

是 — CVE-2025-27915 已列入 CISA Known Exploited Vulnerabilities (KEV) 清單,代表正在被實際利用,請立即修補。

受影響套件(0)

OSV 沒有提供套件對應。