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| Rule General Information |
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| Release Date: | 2024-01-19 | |
| Rule Name: | WordPress WP Live Chat Support Pro Plugin Arbitrary File Upload Vulnerability (CVE-2019-11185) | |
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| CVE ID: | ||
| Rule Protection Details |
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| Description: | 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-blocklist executable file extension in conjunction with a allowlist 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 allowlist file extension) and finally a trailing .phtml file extension. | |
| Impact: | Attackers can upload viruses, Trojans, WebShell, other malicious scripts or pictures containing scripts to the server, and attackers can use these files for subsequent attacks. | |
| Affected OS: | Windows, Linux, Others | |
| Reference: | https://wordpress.org/plugins/wp-live-chat-support/ https://wpvulndb.com/vulnerabilities/9320 https://wp-livechat.com/ https://vigilance.fr/vulnerability/WordPress-WP-Live-Chat-Support-Pro-file-upload-29455 |
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| Solutions |
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| Refer to the announcement or patch by the vendor: https://wordpress.org/plugins/wp-live-chat-support/ |