The WP Live Chat Support Pro plugin through 8.0.26 for WordPress contains an arbitrary file upload vulnerability. This results from an incomplete patch for CVE-2018-12426. Arbitrary file upload is achieved by using a non-blacklisted executable file extension in conjunction with a whitelisted file extension, and prepending "magic bytes" to the payload to pass MIME checks. Specifically, an unauthenticated remote user submits a crafted file upload POST request to the REST api remote_upload endpoint. The file contains data that will fool the plugin's MIME check into classifying it as an image (which is a whitelisted file extension) and finally a trailing .phtml file extension.
CVE-2019-11185 is a critical severity with CVSS 9.8 Arbitrary File Upload issue affecting the Plugin wp-live-chat-support-pro. It affects Versions up to 8.0.26 and is fixed in 8.0.27.
CVE-2019-11185 is tracked for the Plugin wp-live-chat-support-pro as critical severity with CVSS 9.8. The affected range is Versions up to 8.0.26. Update wp-live-chat-support-pro to 8.0.27 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
wp-live-chat-support-pro
View on wordpress.org
|
| CVE | CVE-2019-11185 |
| Patched Versions |
8.0.27
|
| Affected Versions |
Versions up to 8.0.26
|
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