漏洞信息
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Vulnerability Title
PostCSS: incomplete fix of CVE-2026-45623 — attacker-controlled sourceMappingURL reads arbitrary .map files when `from` is unset
Vulnerability Description
PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.19, if from is unset, an attacker can cause PreviousMap.loadFile() to read an unintended source-map file by supplying an absolute or directory-traversal sourceMappingURL. The resulting map’s sources and sourcesContent may then be exposed to the application. This issue is fixed in version 8.5.19.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Vulnerability Title
PostCSS 信息泄露漏洞
Vulnerability Description
PostCSS是postcss团队开源的一个样式表转换工具。 PostCSS 8.5.19之前版本存在安全漏洞,该漏洞源于未设置from时,攻击者可通过提供绝对路径或目录遍历的sourceMappingURL导致PreviousMap.loadFile()读取意外的源映射文件,可能导致sources和sourcesContent泄露给应用程序。
CVSS Information
N/A
Vulnerability Type
N/A