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Cross Site Script Vulnerability on "Subscribers Lists" feature in phplist version 3.5.3 #666

Closed
@r0ck3t1973

Description

@r0ck3t1973

Describe the bug
An authenticated malicious user can take advantage of a Stored XSS vulnerability in the "Subscribers Lists" feature.

To Reproduce
Steps to reproduce the behavior:

  1. Login into the panel phplist
  2. Go to 'phplist3/lists/admin/?page=list&tk=5346bb7f96da80c4ac675b4fe5b21f60'
  3. Click 'Subscribers Lists' -> 'Add a lists'
  4. Insert Payload XSS: 'to email address(es)'
    '><details/open/ontoggle=confirm(1337)>
  5. Save -> Click 'Config' -> 'Add some subscribers'
  6. xss alert message

Expected behavior
The removal of script tags is not sufficient to prevent an XSS attack. You must HTML Entity encode any output that is reflected back to the page

Screnhost
poc1
payload1
add1
click2
mess_alert

Also Video PoC
https://drive.google.com/open?id=1Oh0-YcP2Kombmgh2USyivptZNe-ywCa4

Impact
Commonly include transmitting private data, like cookies or other session information, to the attacker, redirecting the victim to web content controlled by the attacker, or performing other malicious operations on the user’s machine under the guise of the vulnerable site.

Desktop (please complete the following information):
OS: Windows
Browser: All
Version

I Hope you fix it ASAP!!!

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