National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-11185 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://wordpress.org/plugins/wp-live-chat-support/#developers Third Party Advisory
https://wp-livechat.com/ Vendor Advisory
https://wpvulndb.com/vulnerabilities/9320 Exploit Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Unrestricted Upload of File with Dangerous Type (CWE-434)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:wp-livechat:wp_live_chat_support_pro:*:*:*:*:*:wordpress:*:*
     Show Matching CPE(s)
Up to (excluding)
8.0.26


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-11185
NVD Published Date:
06/03/2019
NVD Last Modified:
06/04/2019