HexBrain

Automattic · Report #1037714

XSS in Email Input [intensedebate.com]

Validstatus
mediumseverity
105upvotes
26 Dec 2020disclosed

How it was found

Summary:

I found an XSS in Email input. This input is not sanitized like other inputs allowing user to execute xss payloads.

Platform(s) Affected:

https://www.intensedebate.com/edit-user-account

Steps To Reproduce:

  1. Navigate to your account.
  2. In email address, add the below payload next to your email. "><img src=x onerror=alert(document.cookie);>

Supporting Material/References:

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Impact

Reflected XSS, An attacker can execute malicious javascript codes on the target application (email input specifically). It is highly recommended to fix this one because it is found in sensitive input (email).

Kind Regards.

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