[FD] CSRF in YouTube (WordPress plugin) could allow unauthenticated attacker to change any setting within the plugin (WordPress plugin)

Details ================ Software: YouTube Version: 11.8.1 Homepage: http://ift.tt/1jomCoC Advisory report: http://ift.tt/2uY2N4l CVE: Awaiting assignment CVSS: 4.3 (Medium; AV:N/AC:M/Au:N/C:N/I:P/A:N) Description ================ CSRF in YouTube (WordPress plugin) could allow unauthenticated attacker to change any setting within the plugin Vulnerability ================ The plugin contains a CSRF vulnerability which allows an attacker to change any setting in the plugin so long as they can cause a logged-in admin user to follow a link. The impact of the CSRF vulnerability appears to be limited because it seems that the plugin is not vulnerable to XSS or anything else which could be used in conjunction with the CSRF vulnerability. Proof of concept ================ Visit a page with the following content, and click submit:

The “YouTube API Key:” value will be set to “HELLO”. In a real attack, forms can be auto-submitted. Mitigations ================ Upgrade to version 11.8.2 or later. Disclosure policy ================ dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: http://ift.tt/1B6NWzd Please contact us on security@dxw.com to acknowledge this report if you received it via a third party (for example, plugins@wordpress.org) as they generally cannot communicate with us on your behalf. This vulnerability will be published if we do not receive a response to this report with 14 days. Timeline ================ 2017-06-12: Discovered 2017-07-18: Reported to ext@embedplus.com 2017-07-18: First response from vendor, promises a new version 2017-07-19: New version released (changelog says “Make settings form more secure”) 2017-07-25: Advisory published Discovered by dxw: ================ Tom Adams Please visit security.dxw.com for more information.

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