CVE-2022-1960 in MyCSS Plugin
Summary
by MITRE • 06/27/2022
The MyCSS WordPress plugin through 1.1 does not have CSRF check in place when updating its settings, which could allow attackers to make a logged in admin change them via a CSRF attack
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Analysis
by VulDB Data Team • 07/15/2022
The vulnerability identified as CVE-2022-1960 affects the MyCSS WordPress plugin version 1.1 and earlier, representing a critical security flaw that undermines the integrity of administrative operations within WordPress environments. This issue stems from the absence of Cross-Site Request Forgery (CSRF) protection mechanisms within the plugin's administrative settings update functionality. The vulnerability creates a significant risk for WordPress sites that rely on this plugin, as it allows malicious actors to exploit authenticated admin sessions without proper authorization checks.
The technical flaw manifests in the plugin's failure to implement proper CSRF token validation when processing administrative setting updates. When an administrator visits a compromised website or clicks on a malicious link, the attacker can craft a specially designed request that appears to originate from the legitimate admin session. This allows unauthorized modifications to the plugin's configuration settings, potentially enabling attackers to inject malicious CSS code, alter styling parameters, or modify other administrative configurations that could affect the entire website's appearance and functionality. The vulnerability directly maps to CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in software applications.
The operational impact of this vulnerability extends beyond simple configuration changes, as it provides attackers with a potential foothold for more extensive attacks within the WordPress environment. An attacker who successfully exploits this CSRF vulnerability could modify CSS rules to redirect users to malicious sites, inject tracking scripts, or even manipulate the appearance of critical administrative pages to deceive users. The attack vector typically involves social engineering techniques where administrators are tricked into visiting malicious websites or clicking on compromised links while logged into their WordPress admin panels. This vulnerability aligns with ATT&CK technique T1059.006 for Command and Scripting Interpreter, as it enables attackers to modify web content through legitimate administrative interfaces.
Mitigation strategies for CVE-2022-1960 should prioritize immediate plugin updates to versions that include proper CSRF protection mechanisms. Administrators should also implement additional security measures such as enabling two-factor authentication, regularly monitoring administrative access logs for suspicious activities, and conducting security audits of installed plugins. The WordPress security community recommends that all plugin developers follow secure coding practices including mandatory CSRF token validation for all administrative operations. Organizations should also consider implementing web application firewalls and network monitoring solutions to detect and prevent unauthorized administrative modifications. Regular security assessments and vulnerability scanning should be conducted to identify similar weaknesses in other plugins or custom code implementations that might present analogous CSRF risks to the overall WordPress ecosystem.