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Contents
---
gem: doorkeeper
cve: 2018-1000088
date: 2018-02-21
url: "https://blog.justinbull.ca/cve-2018-1000088-stored-xss-in-doorkeeper/"
title: Doorkeeper gem has stored XSS on authorization consent view
description: |
Stored XSS on the OAuth Client's name will cause users being prompted for
consent via the "implicit" grant type to execute the XSS payload.
The XSS attack could gain access to the user's active session, resulting in
account compromise.
Any user is susceptible if they click the authorization link for the
malicious OAuth client. Because of how the links work, a user cannot tell if
a link is malicious or not without first visiting the page with the XSS
payload.
If 3rd parties are allowed to create OAuth clients in the app using
Doorkeeper, upgrade to the patched versions immediately.
Additionally there is stored XSS in the native_redirect_uri form element.
DWF has assigned CVE-2018-1000088.
cvss_v3: 7.6
unaffected_versions:
- "< 2.1.0"
patched_versions:
- ">= 4.2.6"
related:
url:
- https://github.com/doorkeeper-gem/doorkeeper/issues/969
- https://github.com/doorkeeper-gem/doorkeeper/issues/970
Version data entries
3 entries across 3 versions & 2 rubygems