---
gem: omniauth-facebook
cve: 2013-4562
osvdb: 99693
url: http://www.osvdb.org/show/osvdb/99693
title: omniauth-facebook Gem for Ruby Unspecified CSRF 
date: 2013-11-12

description: |
  omniauth-facebook Gem for Ruby contains a flaw as HTTP requests do not
  require multiple steps, explicit confirmation, or a unique token when
  performing certain sensitive actions. By tricking a user into following
  a specially crafted link, a context-dependent attacker can perform a
  Cross-Site Request Forgery (CSRF / XSRF) attack causing the victim to
  perform an unspecified action.

cvss_v2: 6.8

patched_versions:
  - ">= 1.5.0"
unaffected_versions:
  - "<= 1.4.0"