HexBrain

VK.com · Report #296622

Blind XXE on pu.vk.com

Validstatus
mediumseverity
$500bounty
18upvotes
4 Mar 2018disclosed

Summary

Blind XXE vulnerability in processing of uploaded documents.

Blind XXE vulnerability in processing of uploaded XML-documents such as docx.

Vulnerability was hard-exploitable, because all data retrieval channels did not work except DNS.

How it was found

The write-up for this report has not been downloaded yet, or the program disclosed it without one. Read it on HackerOne.

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