DOM-based local file-path manipulation
Summary: PortSwigger describes DOM-based local file-path manipulation as a vulnerability that arises when a script passes attacker-controllable data to a file-handling API as the filename parameter. An attacker may construct a URL that, when visited by another user, causes that user's browser to open an arbitrary local file.
Bottom line: The impact hinges on how the site uses the opened file, and exploitability may depend on other suitable functionality being present on the website - so the same flaw can range from minor to serious depending on what else the application exposes.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026