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I. Basic Information for CVE-2026-22254
Vulnerability Information

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Vulnerability Title
Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager
Source: NVD (National Vulnerability Database)
Vulnerability Description
Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Versions of Winter CMS before 1.2.10 allow users with access to the CMS Asset Manager were able to upload SVGs without automatic sanitization. To actively exploit this security issue, an attacker would need access to the Backend with a user account with the following permission: cms.manage_assets. The Winter CMS maintainers strongly recommend that the cms.manage_assets permission only be reserved to trusted administrators and developers in general. This vulnerability is fixed in 1.2.10.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/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
Winter 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Winter是Winter开源的一款基于 Laravel PHP 框架的免费开源内容管理系统。 Winter 1.2.10之前版本存在安全漏洞,该漏洞源于允许具有CMS资源管理器访问权限的用户上传未经自动清理的SVG文件,可能导致安全风险。
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
wintercmswinter < 1.2.10 -
II. Public POCs for CVE-2026-22254
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III. Intelligence Information for CVE-2026-22254
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IV. Related Vulnerabilities
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