WordPress Download Manager 2.9.46 / 2.9.51 Cross Site Scripting

Credit: Tom Adams
Risk: Low
Local: No
Remote: Yes

Details ================ Software: WordPress Download Manager Version: 2.9.46,2.9.51 Homepage: https://wordpress.org/plugins/download-manager/ Advisory report: https://security.dxw.com/advisories/xss-download-manager/ CVE: Awaiting assignment CVSS: 5.8 (Medium; AV:N/AC:M/Au:N/C:P/I:P/A:N) Description ================ Reflected XSS in WordPress Download Manager could allow an attacker to do almost anything an admin can Vulnerability ================ This plugin outputs $_GET[aida] inside HTML without escaping, meaning that anybody able to convince an admin to follow a link can add arbitrary HTML to the page. Proof of concept ================ Sign in Activate the plugin Visit the following URL in a browser without XSS mitigation (i.e. Firefox): http://localhost/wp-admin/admin-ajax.php?action=wpdm_generate_password&id=%3C/script%3E%3Cscript%3Ealert(1)%3C/script%3E Mitigations ================ Upgrade to version 2.9.52 or later. Disclosure policy ================ dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/ 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 ================ 2017-03-30: Discovered 2017-05-26: Reported toA contact@w3eden.com 2017-06-09: First response from vendor saying itas been fixed and an update will be coming soon 2017-06-09: Version 2.9.52 released aFixed issue with input data formattinga 2017-06-16: Advisory published Discovered by dxw: ================ Tom Adams Please visit security.dxw.com for more information.

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