CVE-2019-11185

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 6.55% Top 10%
Vendor Advisory wp-livechat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://wordpress.org/plugins/wp-live-chat-support/#developers third party advisory
https://wp-livechat.com/ vendor advisory
https://wpvulndb.com/vulnerabilities/9320 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2019-11185?
CVE-2019-11185 has been scored as a critical severity vulnerability.
How to fix CVE-2019-11185?
To fix CVE-2019-11185, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11185 being actively exploited in the wild?
It is possible that CVE-2019-11185 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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