#VU51538 SQL injection in MyBB - CVE-2021-27946
Published: March 17, 2021 / Updated: June 17, 2021
Vulnerability identifier: #VU51538
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-27946
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
MyBB
MyBB
Software vendor:
MyBB Group
MyBB Group
Description
The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.
The vulnerability exists due to insufficient sanitization of user-supplied data in the poll vote count. A remote authenticated attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.
Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.
Remediation
Install update from vendor's website.