CVE-2025-10190 in WP Easy Toggles Plugin
Summary
by MITRE • 10/11/2025
The WP Easy Toggles plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'toggles' shortcode in all versions up to, and including, 1.9.0 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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Analysis
by VulDB Data Team • 10/11/2025
The WP Easy Toggles plugin presents a critical stored cross-site scripting vulnerability that undermines the security posture of WordPress installations. This vulnerability affects all versions up to and including 1.9.0, creating a persistent threat vector that can be exploited by attackers with contributor-level privileges or higher. The flaw resides in the plugin's handling of the 'toggles' shortcode where user-supplied attributes are not adequately sanitized or escaped before being rendered in web pages. The vulnerability operates as a stored XSS attack because malicious scripts injected through the shortcode attributes are permanently stored within the WordPress database and executed whenever any user accesses the affected pages.
The technical implementation of this vulnerability stems from insufficient input validation and output escaping mechanisms within the plugin's shortcode processing functions. When administrators or contributors create or modify content using the toggles shortcode, they can inject malicious JavaScript code through attributes that are not properly sanitized. This flaw aligns with CWE-79, which describes cross-site scripting vulnerabilities resulting from inadequate input validation and output escaping. The vulnerability specifically targets the plugin's attribute handling system where user inputs are directly incorporated into HTML output without proper sanitization, creating a persistent XSS attack surface that remains active until the malicious content is removed from the database.
The operational impact of this vulnerability extends beyond simple script execution, as it enables attackers to perform various malicious activities through compromised WordPress installations. Authenticated attackers with contributor privileges can inject scripts that steal user session cookies, redirect visitors to malicious sites, deface content, or even escalate their privileges within the WordPress environment. The stored nature of the vulnerability means that once injected, the malicious code persists across multiple page views and user sessions, making it particularly dangerous for websites with multiple contributors or administrators. This vulnerability can be leveraged to conduct session hijacking attacks, data exfiltration, or serve as a foothold for further exploitation within the WordPress environment, potentially leading to full system compromise.
Security mitigations for this vulnerability must address both immediate remediation and long-term prevention strategies. The most critical action is to upgrade to the latest version of the WP Easy Toggles plugin where the XSS vulnerability has been patched through proper input sanitization and output escaping. Administrators should also implement additional security measures including role-based access controls to limit contributor privileges, regular security audits of plugin installations, and monitoring for suspicious shortcode usage. The vulnerability demonstrates the importance of following secure coding practices as outlined in the OWASP Top Ten and MITRE ATT&CK framework, particularly the techniques related to input validation and output encoding. Organizations should also consider implementing Content Security Policy headers as an additional defense-in-depth measure to mitigate the impact of potential XSS attacks, while maintaining regular vulnerability scanning and patch management processes to prevent similar issues in other plugins or themes.