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I. Basic Information for CVE-2026-29052
Vulnerability Information

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Vulnerability Title
HumHub Calendar Module: Stored XSS in Event Types
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Calendar module for HumHub enables users to create one-time or recurring events, manage attendee invitations, and efficiently track all scheduled activities. Prior to version 1.8.11, a Stored Cross-Site Scripting (XSS) vulnerability in the Event Types of the HumHub Calendar module impacts users viewing events created by an administrative account. This issue has been patched in version 1.8.11.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Calendar 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Calendar是HumHub开源的一个事件管理模块,用于公司或组织内部事件的全面解决方案。 Calendar 1.8.11之前版本存在跨站脚本漏洞,该漏洞源于事件类型中存在存储型跨站脚本,可能影响查看管理员创建事件的用户。
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)
Affected Products
VendorProductAffected VersionsCPESubscribe
humhubcalendar < 1.8.11 -
II. Public POCs for CVE-2026-29052
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III. Intelligence Information for CVE-2026-29052
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IV. Related Vulnerabilities
V. Comments for CVE-2026-29052

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