Lab: Password reset poisoning via middleware
Summary: PortSwigger's lab demonstrates password reset poisoning, a vulnerability in which the application trusts a manipulated host header when generating reset links. The lab instructs the tester to add an X-Forwarded-Host header pointing at the exploit server in Burp Repeater, targeting a user named carlos who clicks any link in emails he receives.
Why it matters: A single attacker-controlled header can redirect a password reset link to infrastructure the attacker owns, and the only thing standing between that and account takeover is whether the recipient clicks - which this lab's user always does.
Read the original at PortSwigger Research ↗
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