Awesome Support <= 6.4.1 - Authenticated (Custom+) Stored Cross-Site Scripting via Ticket Attachment MIME Confusion
Impact
The Awesome Support – WordPress HelpDesk & Support Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpas_files' parameter in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the "Enable drag-n-drop uploader for ticket form" setting is enabled, as it is disabled by default.
Source excerpt · WordfenceAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
awesomesupport · Awesome Support – WordPress HelpDesk & Support Plugin
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 0 through 6.4.1 (inclusive) | affected |
Original source description
The Awesome Support – WordPress HelpDesk & Support Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpas_files' parameter in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This vulnerability is only exploitable when the "Enable drag-n-drop uploader for ticket form" setting is enabled, as it is disabled by default.
References
- Security advisory www.wordfence.com/threat-intel/vulnerabilities/id/01515533-197c-41c0-9c2b-6f0317cdc375
- Source reference plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php
- Source reference plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php
- Source reference plugins.trac.wordpress.org/browser/awesome-support/tags/6.4.1/includes/file-uploader/class-file-uploader.php
- Source reference wordpress.org/plugins/awesome-support/
- Patch plugins.trac.wordpress.org/changeset/3749553/awesome-support/trunk/includes/file-uploader/class-file-uploader.php