CyberRota Analysis
AI-GeneratedPostCSS versions prior to 8.5.19 are vulnerable to a directory traversal attack that allows an attacker to manipulate the sourceMappingURL, potentially exposing sensitive information from unintended source-map files. This vulnerability could lead to the disclosure of application-specific data, making it critical for developers and organizations using PostCSS to upgrade to the patched version immediately to mitigate risks. Prioritization is essential for those managing applications that rely on PostCSS for CSS processing and transformation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD 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.
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