CVE-2026-40479— Kimai: Stored XSS via Incomplete HTML Attribute Escaping in Team Member Widget
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I. Basic Information for CVE-2026-40479
Vulnerability Information
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Vulnerability Title
Kimai: Stored XSS via Incomplete HTML Attribute Escaping in Team Member Widget
Source: NVD (National Vulnerability Database)
Vulnerability Description
Kimai is an open-source time tracking application. In versions 1.16.3 through 2.52.0, the escapeForHtml() function in KimaiEscape.js does not escape double quote or single quote characters. When a user's profile alias is inserted into an HTML attribute context via the team member form prototype and rendered through innerHTML, this incomplete escaping allows HTML attribute injection. An authenticated user with ROLE_USER privileges can store a malicious alias that executes JavaScript in the browser of any administrator viewing the team form, resulting in stored XSS with privilege escalation. This issue has been fixed in version 2.53.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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
kimai 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kimai是kimai个人开发者的一个基于网络的多用户时间跟踪应用程序。 kimai 1.16.3至2.52.0版本存在安全漏洞，该漏洞源于escapeForHtml函数转义不完整，可能导致存储型跨站脚本攻击和权限提升。
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
II. Public POCs for CVE-2026-40479
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IV. Related Vulnerabilities
Same product: kimai
- CVE-2026-44298
Kimai: Arbitrary file read in invoice PDF renderer (admin) - CVE-2026-41498
Kimai: Team API Missing Object-Level Authorization - CVE-2026-42267
Kimai: Formula Injection via tag names in XLSX export - CVE-2026-40486
Kimai's User Preferences API allows standard users to modify - CVE-2026-28685
Kimai: API invoice endpoint missing customer-level access co
Same vendor: kimai
- CVE-2026-44298
Kimai: Arbitrary file read in invoice PDF renderer (admin) - CVE-2026-41498
Kimai: Team API Missing Object-Level Authorization - CVE-2026-42267
Kimai: Formula Injection via tag names in XLSX export - CVE-2026-40486
Kimai's User Preferences API allows standard users to modify - CVE-2026-28685
Kimai: API invoice endpoint missing customer-level access co
Same weakness: CWE-79
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V. Comments for CVE-2026-40479
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