CVE-2024-11752 in Eveeno Plugin
Summary
by MITRE • 12/14/2024
The Eveeno plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'eveeno' shortcode in all versions up to, and including, 1.7 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 • 02/17/2025
The Eveeno WordPress plugin presents a critical stored cross-site scripting vulnerability that affects all versions up to and including 1.7. This vulnerability resides within the plugin's 'eveeno' shortcode implementation and represents a significant security risk for WordPress installations that utilize this plugin. The flaw stems from inadequate input sanitization and insufficient output escaping mechanisms that fail to properly validate or sanitize user-supplied attributes before processing them within the shortcode functionality.
The technical nature of this vulnerability allows authenticated attackers who possess contributor-level access or higher to inject malicious JavaScript code through the plugin's shortcode interface. When these malicious scripts are stored within the WordPress database and subsequently rendered on pages containing the affected shortcode, they execute in the context of any user who accesses those pages. This stored XSS vulnerability operates at the application layer and can potentially compromise user sessions, steal sensitive information, or redirect users to malicious websites. The vulnerability specifically targets the shortcode processing mechanism where user input is not adequately filtered or escaped before being embedded into HTML output.
The operational impact of this vulnerability extends beyond simple script execution as it provides attackers with persistent access to compromised WordPress environments. Contributors and higher privileged users can leverage this flaw to maintain long-term presence within the system, potentially leading to data exfiltration, privilege escalation, or further exploitation of the WordPress installation. The vulnerability affects not only the immediate execution context but also creates opportunities for attackers to establish backdoors or deploy additional malicious payloads. Attackers can craft sophisticated attacks that may include session hijacking, credential theft, or manipulation of content displayed to other users with varying privilege levels.
Mitigation strategies for this vulnerability should include immediate patching to version 1.8 or later where the sanitization and escaping mechanisms have been properly implemented. Administrators should also implement additional security measures such as restricting contributor privileges where possible, implementing content security policies, and monitoring for suspicious shortcode usage patterns. The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a clear violation of secure coding practices that should be addressed through proper input validation and output encoding. Organizations should consider implementing web application firewalls to detect and block malicious shortcode parameters, while also conducting regular security audits of plugin installations to identify similar vulnerabilities in other third-party components. The ATT&CK framework categorizes this vulnerability under initial access and execution phases where attackers can leverage authenticated access to establish persistent threats within WordPress environments, making it a critical target for immediate remediation.