CVE-2024-11832 is a stored cross-site scripting vulnerability classified under CWE-79 found in the Beaver Builder – WordPress Page Builder plugin, maintained by justinbusa. This vulnerability exists in all plugin versions up to and including 2.8.4.4. The root cause is insufficient sanitization and escaping of user-supplied input in the custom JavaScript row settings feature. Authenticated users with Contributor-level permissions or higher can inject arbitrary JavaScript code into pages. Because the malicious script is stored persistently, it executes in the context of any user who visits the infected page, including administrators or other privileged users. The vulnerability does not require user interaction beyond page viewing, and the attacker does not need higher privileges than Contributor, which is a relatively low-level role in WordPress. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required, no user interaction, and partial impact on confidentiality and integrity but no impact on availability. No public exploits have been reported yet, but the vulnerability poses a significant risk due to the widespread use of Beaver Builder in WordPress sites. The vulnerability could be leveraged for session hijacking, privilege escalation, defacement, or delivering malware payloads via injected scripts. The lack of a patch link suggests a fix may be pending or users must upgrade to a newer version once released. The vulnerability highlights the importance of rigorous input validation and output encoding in web applications, especially in plugins that allow user-generated content or code.

The impact of CVE-2024-11832 is primarily on the confidentiality and integrity of affected WordPress sites using the Beaver Builder plugin. An attacker with Contributor-level access can inject malicious scripts that execute in the browsers of any user visiting the compromised page, including administrators. This can lead to session hijacking, theft of sensitive information such as cookies or credentials, unauthorized actions performed on behalf of users, website defacement, or distribution of malware. Because the vulnerability does not affect availability, the site remains operational but compromised. The ease of exploitation is moderate since it requires authenticated access at Contributor level, which is commonly granted in multi-author WordPress environments. The scope is broad given the popularity of Beaver Builder among WordPress users worldwide. Organizations relying on this plugin risk data breaches, reputational damage, and potential regulatory consequences if user data is exposed. The vulnerability also increases the attack surface for further exploitation or lateral movement within compromised environments.

To mitigate CVE-2024-11832, organizations should immediately restrict Contributor-level access to trusted users only and audit existing user roles to minimize unnecessary permissions. Until an official patch is released, administrators can disable the custom JavaScript row feature or remove the Beaver Builder plugin if feasible. Implementing a Web Application Firewall (WAF) with rules to detect and block suspicious JavaScript payloads in HTTP requests can provide interim protection. Site owners should enable Content Security Policy (CSP) headers to restrict execution of unauthorized scripts. Regularly review and sanitize all user-generated content, especially scripts or HTML inputs. Monitor logs for unusual activity related to page edits or script injections. Once a vendor patch or updated plugin version is available, apply it promptly. Additionally, educate content contributors about the risks of injecting scripts and enforce strict input validation policies. Backup site data frequently to enable recovery from potential compromises. Finally, consider deploying security plugins that scan for XSS vulnerabilities and malicious code injections.