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List: full-disclosure
Subject: [FD] Path traversal vulnerability in WordPress Core Ajax handlers
From: Summer of Pwnage <lists () securify ! nl>
Date: 2016-08-20 9:04:47
Message-ID: 64d8d898-6d48-55ce-7365-0db552bd1e52 () securify ! nl
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Path traversal vulnerability in WordPress Core Ajax handlers
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Yorick Koster, July 2016
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Abstract
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A path traversal vulnerability was found in the Core Ajax handlers of
the WordPress Admin API. This issue can (potentially) be used by an
authenticated user (Subscriber) to create a denial of service condition
of an affected WordPress site.
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OVE ID
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OVE-20160712-0036
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See also
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#37490 - Improve capability checks in wp_ajax_update_plugin() and
wp_ajax_delete_plugin()
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Tested versions
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This issue was successfully tested on the WordPress version 4.5.3.
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Fix
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WordPress version 4.6 mitigates this vulnerability by moving the CSRF
check to the top of the affected method(s).
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Details
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https://sumofpwn.nl/advisory/2016/path_traversal_vulnerability_in_wordpress_core_ajax_handlers.html
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Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its
goal is to contribute to the security of popular, widely used OSS
projects in a fun and educational way.
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