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CVE-2025-27915

KEV EPSS 26.05% · P96
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I. Basic Information for CVE-2025-27915

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Zimbra Collaboration Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zimbra Collaboration Server（ZCS）是Zimbra公司的一套电子邮件和协作解决方案。该方案提供电子邮件、联系人、日历、文件共享、社交网络等功能。 Zimbra Collaboration Server 9.0版本、10.0版本和10.1版本存在安全漏洞，该漏洞源于Classic Web Client对ICS文件中的HTML内容清理不足，可能导致存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

VendorProductAffected VersionsCPESubscribe
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II. Public POCs for CVE-2025-27915

#POC DescriptionSource LinkShenlong Link
1Detects Zimbra Collaboration Suite versions vulnerable to CVE-2025-27915, a stored XSS vulnerability in the Classic Web Client due to insufficient sanitization of HTML content in ICS files. When a user views an email with a malicious ICS entry, embedded JavaScript executes via an ontoggle event inside a details tag, allowing attackers to perform unauthorized actions like email redirection and data exfiltration. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-27915.yamlPOC Details
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III. Intelligence Information for CVE-2025-27915

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Same Patch Batch · n/a · 2025-03-12 · 14 CVEs total

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CVE-2024-27763BasicSR 安全漏洞
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CVE-2025-25683AlekSIS-Core 安全漏洞
CVE-2025-25774Open5GS 安全漏洞
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CVE-2025-25975parse-git-config 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2025-27915

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