SB2020042711 - Arbitrary file upload in Simple File List plugin for WordPress
Published: April 27, 2020
Security Bulletin ID
SB2020042711
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Arbitrary file upload (CVE-ID: N/A)
CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of files during file upload. A remote attacker can upload a file containing PHP code but with a png image file extension, then send a second request to move (rename) the png file to a php file and execute arbitrary file on the server.
Remediation
Install update from vendor's website.