SB2020062203 - SQL injection in Comments – wpDiscuz plugin for WordPress

Description

This security bulletin contains information about 1 security vulnerability.

1) SQL injection (CVE-ID: CVE-2020-13640)

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data passed via the "order" parameter of a "wpdLoadMoreComments" request. A remote 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.

References

• https://plugins.trac.wordpress.org/browser/wpdiscuz/tags/5.3.6
• https://plugins.trac.wordpress.org/changeset/2323200
• https://wordpress.org/plugins/wpdiscuz/#developers
• https://wpdiscuz.com/community/news/security-vulnerability-issue-in-5-3-5-please-udate/