Lab: Clickjacking with form input data prefilled from a URL parameter
Summary: PortSwigger's lab extends its basic clickjacking exercise by having the attacker prepopulate an email-change form through a URL parameter, then frame the account page so a victim clicks a "Click me" decoy that lands on the "Update email" button. The lab is solved when the victim's email address changes, with the victim browsing in Chrome and test credentials given as wiener:peter.
Key Takeaway: The attack needs no malware and no stolen password - just a framed page and a URL parameter that fills in the attacker's chosen address, so a single misplaced click hands over account recovery.
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