CVE-2025-27915
Synacor Zimbra Collaboration Suite (ZCS) Cross-site Scripting Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 5.4
- EPSS
- 4.24% 백분위 89.8% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2025.10.28
- 공개일
- 2025.03.13
CISA KEV에 등록된 실제 악용 확인 취약점
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,...
공급사 Synacor
제품 Zimbra Collaboration Suite (ZCS)
영향 버전 n/a, >= 10.0.0 < 10.0.13, >= 10.1.0 < 10.1.5, 9.0.0
수정 버전 10.0.13, 10.1.5
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
조치 기한: 2025.10.28CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE CWE-79
KEV 등록일 2025.10.07
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://wiki.zimbra.com/wiki/Security_Center ; https://nvd.nist.gov/vuln/detail/CVE-2025-27915
EPSS 데이터 기준일 2026.06.27