WordPress GD bbPress Attachments 2.1 Cross Site Scripting

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

Details ================ Software: GD bbPress Attachments Version: 2.1 Homepage: http://wordpress.org/plugins/gd-bbpress-attachments/ Advisory report: https://security.dxw.com/advisories/reflected-xss-in-gd-bbpress-attachments-allows-an-attacker-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 ================ Reflected XSS in GD bbPress Attachments allows an attacker to do almost anything an admin can Vulnerability ================ This plugin outputs the value of $_GET[?tab?] without escaping (see forms/panels.php lines 3 and 39). An attacker could easilyconstruct an URL which performs virtually any action an admin is able to perform, including creating/deleting users/posts, injecting malicious HTML into user-facing pages, or editing PHP files (if that feature hasn?t been disabled). Proof of concept ================ Visit the following URL in a browser with no reflected XSS protection (i.e. Firefox or older versions of IE): http://localhost/wp-admin/edit.php?post_type=forum&page=gdbbpress_attachments&tab=%22%3E%3Cscript%3Ealert(1)%3C/script%3E Mitigations ================ Upgrade to version 2.3 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 ================ 2015-02-25: Discovered 2015-07-01: Reported to vendor via email form onhttps://www.dev4press.com/contact/ 2015-07-01: Requested CVE 2015-07-01:Vendor responded 2015-07-04:Vendorconfirmed fixed 2015-07-08: Published Discovered by dxw: ================ Tom Adams Please visit security.dxw.com for more information.

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