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CVE-2023-51447— Decidim 跨站脚本漏洞

一分钟漏洞结论

影响对象
decidim decidim
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。

Decidim是一个参与式民主框架，用 Ruby on Rails 编写。 Decidim 0.27.0版本至0.27.5版本、0.28.0版本存在跨站脚本漏洞，该漏洞源于动态文件上传功能中存在跨站脚本漏洞。

CVSS 6.3 · Medium EPSS 0.49% · P41
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一、 漏洞 CVE-2023-51447 基础信息

漏洞信息
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Vulnerability Title
Decidim vulnerable to cross-site scripting (XSS) in the dynamic file uploads
来源: CVE Program / CVE List V5
Vulnerability Description
Decidim is a participatory democracy framework. Starting in version 0.27.0 and prior to versions 0.27.5 and 0.28.0, the dynamic file upload feature is subject to potential cross-site scripting attacks in case the attacker manages to modify the file names of the records being uploaded to the server. This appears in sections where the user controls the file upload dialogs themselves and has the technical knowledge to change the file names through the dynamic upload endpoint. Therefore I believe it would require the attacker to control the whole session of the particular user but in any case, this needs to be fixed. Successful exploit of this vulnerability would require the user to have successfully uploaded a file blob to the server with a malicious file name and then have the possibility to direct the other user to the edit page of the record where the attachment is attached. The users are able to craft the direct upload requests themselves controlling the file name that gets stored to the database. The attacker is able to change the filename e.g. to `<svg onload=alert('XSS')>` if they know how to craft these requests themselves. And then enter the returned blob ID to the form inputs manually by modifying the edit page source. Versions 0.27.5 and 0.28.0 contain a patch for this issue. As a workaround, disable dynamic uploads for the instance, e.g. from proposals.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/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
Decidim 跨站脚本漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Decidim是一个参与式民主框架，用 Ruby on Rails 编写。 Decidim 0.27.0版本至0.27.5版本、0.28.0版本存在跨站脚本漏洞，该漏洞源于动态文件上传功能中存在跨站脚本漏洞。
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
decidim decidim >= 0.27.0, < 0.27.5 -

二、漏洞 CVE-2023-51447 的公开POC

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三、漏洞 CVE-2023-51447 的情报信息

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CVE-2023-51447 补丁与修复 (2)

CVE-2023-51447 厂商安全公告 (1)

CVE-2023-51447 其他参考 (3)

同批安全公告 · decidim · 2024-02-20 · 共 4 条

CVE-2023-48220 5.7 MEDIUM Decidim 安全漏洞
CVE-2023-47635 4.5 MEDIUM Decidim 安全漏洞
CVE-2023-47634 3.1 LOW Decidim 安全漏洞

IV. Related Vulnerabilities

Same product: decidim
Same vendor: decidim
Same weakness: CWE-79

V. Comments for CVE-2023-51447

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