CVE-2021-24863
WordPress vulnerability analysis and mitigation

Overview

The vulnerability CVE-2021-24863 affects the WordPress plugin StopBadBots versions prior to 6.67. This unauthenticated SQL injection vulnerability was discovered and reported by ZhongFu Su(JrXnm) of Wuhan University, and was publicly disclosed on November 15, 2021 (WPScan).

Technical details

The vulnerability stems from improper input validation where the plugin fails to sanitize and escape the User Agent before using it in SQL statements. This security flaw is classified as CWE-89 and falls under the OWASP Top 10 category A1: Injection. The vulnerability has been assigned a critical CVSS score of 10.0, indicating the highest severity level (WPScan).

Impact

As an unauthenticated SQL injection vulnerability with a critical CVSS score of 10.0, this flaw could potentially allow attackers to access, modify, or delete database contents without requiring authentication. This could lead to complete compromise of the affected WordPress installation's database (WPScan).

Mitigation and workarounds

The vulnerability has been fixed in version 6.67 of the StopBadBots plugin. Users are strongly advised to update to this version or later to protect their installations (WPScan).

Additional resources


SourceThis report was generated using AI

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