CVE-2026-22254— Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager
Quick assessment
Affected
wintercms winter
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-22254
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Winter Affected by Stored Cross-Site Scripting (XSS) in Asset Manager
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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
II. Public POCs for CVE-2026-22254
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-22254
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-22254 (1)
IV. Related Vulnerabilities
Same product: winter
-
CVE-2026-63179
Winter: Local File Inclusion through @import directives in L -
CVE-2026-54256
Winter: Authenticated IDOR in backend FileUpload widget allo -
CVE-2026-32639
Winter: Broken access control in `Cms\Controllers\Index` all -
CVE-2026-32593
Winter: SQL Injection in Backend Filter Widget numberrange S -
CVE-2026-32258
Winter: Stored XSS through Editor Settings custom styles
Same vendor: wintercms
-
CVE-2026-63179
Winter: Local File Inclusion through @import directives in L -
CVE-2026-54256
Winter: Authenticated IDOR in backend FileUpload widget allo -
CVE-2026-32639
Winter: Broken access control in `Cms\Controllers\Index` all -
CVE-2026-32593
Winter: SQL Injection in Backend Filter Widget numberrange S -
CVE-2026-32258
Winter: Stored XSS through Editor Settings custom styles
Same weakness: CWE-79
-
CVE-2026-108159
AstronRPA through 1.1.6 RCE via Smart-Component Chat XSS and -
CVE-2016-20098
Moderator Toolbox before 4.0.14 Stored XSS via Removal Reaso -
CVE-2026-104083
SmarterMail < Build 9777 Stored Mutation XSS via MathML Fore -
CVE-2026-94066
WordPress Pond theme <= 2.6.1 - Reflected Cross Site Scripti -
CVE-2026-94063
WordPress Education Center theme <= 3.6.12 - Reflected Cross
V. Comments for CVE-2026-22254
No comments yet