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CVE-2023-37269— Winter 跨站脚本漏洞

一分钟漏洞结论

影响对象
wintercms winter
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Winter是基于 Laravel PHP 框架的免费、开源、自托管 CMS 平台。 Winter 1.2.3 版本之前存在跨站脚本漏洞，该漏洞源于 SVG 上传未经过清理，这可能会导致存储型跨站脚本 (XSS) 攻击。

CVSS 2.0 · Low EPSS 2.70% · P85

公开利用映射 1

ExploitDB · 1 EDB-51591 [webapps]

可能的 ATT&CK 技术 1 AI

T1059.007 · JavaScript
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一、 漏洞 CVE-2023-37269 基础信息

漏洞信息
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Vulnerability Title
Winter CMS vulnerable to stored XSS through privileged upload of SVG file
来源: CVE Program / CVE List V5
Vulnerability Description
Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Users with the `backend.manage_branding` permission can upload SVGs as the application logo. Prior to version 1.2.3, SVG uploads were not sanitized, which could have allowed a stored cross-site scripting (XSS) attack. To exploit the vulnerability, an attacker would already need to have developer or super user level permissions in Winter CMS. This means they would already have extensive access and control within the system. Additionally, to execute the XSS, the attacker would need to convince the victim to directly visit the URL of the maliciously uploaded SVG, and the application would have to be using local storage where uploaded files are served under the same domain as the application itself instead of a CDN. This is because all SVGs in Winter CMS are rendered through an `img` tag, which prevents any payloads from being executed directly. These two factors significantly limit the potential harm of this vulnerability. This issue has been patched in v1.2.3 through the inclusion of full support for SVG uploads and automatic sanitization of uploaded SVG files. As a workaround, one may apply the patches manually.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N
来源: 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)
来源: CVE Program / CVE List V5
Vulnerability Title
Winter 跨站脚本漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Winter是基于 Laravel PHP 框架的免费、开源、自托管 CMS 平台。 Winter 1.2.3 版本之前存在跨站脚本漏洞，该漏洞源于 SVG 上传未经过清理，这可能会导致存储型跨站脚本 (XSS) 攻击。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
wintercms winter < 1.2.3 -

二、漏洞 CVE-2023-37269 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2023-37269 的情报信息

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CVE-2023-37269 补丁与修复 (2)

CVE-2023-37269 厂商安全公告 (1)

CVE-2023-37269 其他参考 (1)

IV. Related Vulnerabilities

Same product: winter
Same vendor: wintercms
Same weakness: CWE-79

V. Comments for CVE-2023-37269

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