412b034ee9
6 changes to exploits/shellcodes WordPress Plugin WPSchoolPress 2.1.16 - 'Multiple' Cross Site Scripting (XSS) KONGA 0.14.9 - Privilege Escalation Simple Subscription Website 1.0 - SQLi Authentication Bypass Fuel CMS 1.4.13 - 'col' Blind SQL Injection (Authenticated) WordPress Plugin Contact Form to Email 1.3.24 - Stored Cross Site Scripting (XSS) (Authenticated) PHP Laravel 8.70.1 - Cross Site Scripting (XSS) to Cross Site Request Forgery (CSRF)
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2.2 KiB
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31 lines
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2.2 KiB
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# Exploit Title: WordPress Plugin WPSchoolPress 2.1.16 - 'Multiple' Cross Site Scripting (XSS)
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# Date: 20/08/2021
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# Exploit Author: Davide Taraschi
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# Vendor Homepage: https://wpschoolpress.com/
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# Software Link: https://wpschoolpress.com/free-download/
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# Version: up to 2.1.17 (non included)
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# Tested on: Ubuntu 20.04 over WordPress 5.8 and apache2
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# CVE : CVE-2021-24664
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# Description:
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The plugin sanitise some fields using a wordpress built-in function called sanitize_text_field() but does not correctly escape them before outputting in attributes, resulting in Stored Cross-Site Scripting issues.
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The function wp_sanitize_text_field() escape < and > but does not escape characters like ", allowing an attacker to break a HTML input tag and inject arbitrary javascript.
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# PoC:
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As admin,
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- Add a new teacher attendance (/wp-admin/admin.php?page=sch-teacherattendance), Tick the Absent box and put the following payload in the Reason: "style=animation-name:rotation onanimationstart=alert(/XSS/)//
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The XSS will be triggered when adding another teacher attendance by clicking on the Add button
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- Add a new Student Attendance (/wp-admin/admin.php?page=sch-attendance), tick the Absent box and put the following payload in the Reason: " style=animation-name:rotation onanimationstart=alert(/XSS/)//
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The XSS will be triggered when adding another attendance by clicking the 'Add/Update' button
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- Add a new Subject Mark Field (/wp-admin/admin.php?page=sch-settings&sc=subField) and put the following payload in the 'Field': " autofocus onfocus=alert(/XSS/)//
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The XSS will be triggered when editing the created Subject Mark (ie /admin.php?page=sch-settings&sc=subField&ac=edit&sid=3)
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- Create a new Subject (/wp-admin/admin.php?page=sch-subject), with the following payload in the Subject Name field: " autofocus onfocus=alert(/XSS/)//
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The XSS will be triggered when editing the Subject
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- Create a new Exam (/wp-admin/admin.php?page=sch-exams) with the following payload in the Exam Name Field: " autofocus onfocus=alert(/XSS/)//
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The XSS will be triggered when editing the Exam=20
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Note that some of this XSS issues can be executed by a teacher (medium-privileged user), but since wordpress uses HTTPonly cookies is impossible to steal cookies. |