CVE-2024-5229 in Primary Addon for Elementor Plugin
Summary
by MITRE • 05/25/2024
The Primary Addon for Elementor plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Pricing Table widget in all versions up to, and including, 1.5.5 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 • 03/28/2025
The vulnerability identified in the Primary Addon for Elementor plugin represents a critical stored cross-site scripting flaw that undermines the security integrity of WordPress websites relying on this plugin. This weakness exists within the plugin's Pricing Table widget functionality and affects all versions up to and including 1.5.5, making it a widespread concern for site administrators who have not yet updated their installations. The vulnerability stems from inadequate input sanitization mechanisms and insufficient output escaping procedures that fail to properly validate and sanitize user-supplied attributes before they are stored and subsequently executed within web pages.
The technical nature of this flaw allows authenticated attackers who possess contributor-level access or higher privileges to exploit the system by injecting malicious scripts into the pricing table widget configuration. These injected scripts become permanently stored within the WordPress database and execute whenever any user accesses a page containing the compromised widget, creating a persistent threat vector that can affect all visitors to the affected website. This stored XSS vulnerability operates through the manipulation of user attributes within the plugin's interface, where input validation fails to properly filter or escape potentially malicious content before it is rendered on web pages.
From an operational perspective, this vulnerability poses significant risks to website security and user data integrity since it enables attackers to execute arbitrary code in the context of affected websites. The impact extends beyond simple script execution as these malicious payloads could be used to steal user credentials, perform unauthorized actions on behalf of users, manipulate website content, or redirect visitors to malicious sites. The requirement for only contributor-level access makes this vulnerability particularly concerning since it can be exploited by users who typically have limited permissions but still possess the ability to modify content within the WordPress administration area.
The vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws in software applications, and maps directly to ATT&CK technique T1566.001 for "Phishing with Social Engineering" through the exploitation of stored XSS vulnerabilities. Organizations should immediately implement mitigation strategies including immediate plugin updates to versions that address this vulnerability, implementing additional security measures such as web application firewalls, and conducting thorough security audits of all plugins and themes. Access controls should be reviewed to ensure that only trusted users have contributor-level permissions or higher, and regular monitoring of website content should be established to detect any unauthorized modifications that may indicate exploitation attempts.