Vulnerability Details : CVE-2019-11185
Potential exploit
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.
Products affected by CVE-2019-11185
- cpe:2.3:a:3cx:live_chat:*:*:*:*:*:wordpress:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-11185
1.87%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-11185
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-11185
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-11185
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https://wpvulndb.com/vulnerabilities/9320
WP Live Chat Support Pro - File Upload BypassExploit;Third Party Advisory
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https://wordpress.org/plugins/wp-live-chat-support/#developers
WP Live Chat Support – WordPress plugin | WordPress.orgThird Party Advisory
-
https://wp-livechat.com/
Home - WP Live Chat SupportVendor Advisory
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