CVE-2026-72576— Bludit - Stored Cross-Site Scripting via Malicious SVG Logo Upload
Quick assessment
Affected
Bludit Bludit
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.
Bludit是Bludit公司开源的一个内容管理系统。 Bludit 4.0.0-beta版本存在跨站脚本漏洞，该漏洞源于上传特制SVG文件作为站点logo时，/admin/ajax/logo-upload端点未调用sanitizeSVG或transformImage直接移动文件至web根目录，可能导致低权限认证用户注入任意JavaScript，存储的脚本在加载logo的用户浏览器中执行。
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I. Basic Information for CVE-2026-72576
Vulnerability Information
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Vulnerability Title
Bludit - Stored Cross-Site Scripting via Malicious SVG Logo Upload
Source: CVE Program / CVE List V5
Vulnerability Description
A stored cross-site scripting (XSS) vulnerability in Bludit 4.0.0-beta allows a low-privileged authenticated user (Author role) to inject arbitrary JavaScript by uploading a crafted SVG file as the site logo. A stored script tag in the SVG executes in the browser of any user who loads the logo.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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
Bludit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bludit是Bludit公司开源的一个内容管理系统。 Bludit 4.0.0-beta版本存在跨站脚本漏洞，该漏洞源于上传特制SVG文件作为站点logo时，/admin/ajax/logo-upload端点未调用sanitizeSVG或transformImage直接移动文件至web根目录，可能导致低权限认证用户注入任意JavaScript，存储的脚本在加载logo的用户浏览器中执行。
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-2026-72576
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Vendor Pages for CVE-2026-72576 (1)
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V. Comments for CVE-2026-72576
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