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Exploits
ID:12836 - Exploit for Path traversal in Postcss - CVE-2026-45623
ID:12836 - Exploit for Path traversal in Postcss - CVE-2026-45623
Published: July 22, 2026
Vulnerability identifier: #VU139097
Vulnerability risk: Medium
CVE-ID: CVE-2026-45623
CWE-ID: CWE-22
Exploitation vector: Remote access
Vulnerable software:
Postcss
Postcss
Link to public exploit:
Vulnerability description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in lib/previous-map.js. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
Remediation
Install updates from vendor's website.