Details ================ Software: iframe Version: 3.0 Homepage: http://ift.tt/1hVBaYb Advisory report: http://ift.tt/1N3PiSc CVE: Awaiting assignment CVSS: 5.5 (Medium; AV:N/AC:L/Au:S/C:P/I:P/A:N) Description ================ Stored XSS in iframe allows less privileged users to do almost anything an admin can Vulnerability ================ Users without the unfiltered_html capability are able to insert arbitrary HTML into pages and thus exceed the privileges they were granted. Proof of concept ================ Insert the following into a post: [iframe src=\"http://www.youtube.com/embed/4qsGTXLnmKs\" width=\"100%\" height=\"500\" onload=\"alert(1)\"] Mitigations ================ Disable the plugin until a new version is released that fixes this bug. The vendor has released version 4.0 in which onload is disabled, but the other ‘event’ attributes are still permitted, including onpageshow. A number of these event attributes could be used to execute this attack, so this issue is not resolved. 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 ================ 2015-07-31: Discovered 2015-08-05: Reported to vendor via web form on http://ift.tt/1GJ8SBg 2015-08-06: Vendor responded 2015-08-10: Vendor reported fixed in version 4.0 but this does not address the issue: the plugin is still vulnerable. 2015-08-10: Published Discovered by dxw: ================ Tom Adams Please visit security.dxw.com for more information.
Source: Gmail -> IFTTT-> Blogger
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