vulnerability
WordPress Plugin: wp-live-chat-support-pro: CVE-2019-11185: Unrestricted Upload of File with Dangerous Type
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | May 7, 2019 | May 15, 2025 | Apr 30, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
May 7, 2019
Added
May 15, 2025
Modified
Apr 30, 2026
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-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.
Solution
wp-live-chat-support-pro-plugin-cve-2019-11185
References
Rapid7 Labs
2026 Global Threat Landscape Report
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