postcss: PostCSS: Information disclosure and denial of service via crafted CSS input

A flaw was found in PostCSS, a tool that processes CSS files. An attacker who provides specially crafted CSS input containing a malicious source map comment can cause the system to read arbitrary files from the local filesystem. This can lead to the disclosure of sensitive information, specifical...

Directory Traversal

Overview Affected versions of this package are vulnerable to Directory Traversal via the inputSourceMap function. An attacker can access arbitrary files by crafting malicious input source code containing a sourceMappingURL comment that references a specific source map file path. Note: This is onl...