CVE-2025-11726 is a vulnerability classified under CWE-862 (Missing Authorization) found in the Beaver Builder Page Builder plugin for WordPress, specifically in all versions up to and including 2.9.4. The root cause is insufficient capability checks in REST API endpoints within the 'fl-controls/v1' namespace, which manage site-wide Global Presets such as colors and backgrounds. These endpoints fail to properly verify whether the authenticated user has the necessary permissions to modify these global settings. Consequently, any authenticated user with contributor-level privileges or higher can add, modify, or delete global color and background presets. This manipulation affects the entire site’s Beaver Builder content, potentially altering the visual integrity and user experience across all pages built with the plugin. The vulnerability requires authentication but no user interaction beyond that. The CVSS v3.1 base score is 4.3 (medium), reflecting the limited scope of impact (integrity only), ease of exploitation (low complexity), and the requirement for authenticated access with privileges. No known exploits have been reported in the wild as of the publication date. The vulnerability does not impact confidentiality or availability directly but can be leveraged for defacement or misleading site appearance changes. The lack of patch links suggests that a fix may be pending or users should monitor vendor advisories closely.

The primary impact of CVE-2025-11726 is on the integrity of website content managed by Beaver Builder. An attacker with contributor-level access can alter global presets, which affects the visual styling of all pages using Beaver Builder, potentially leading to site defacement or brand damage. While this does not expose sensitive data or cause service outages, it undermines trust and user experience. Organizations relying on Beaver Builder for their WordPress sites, especially those with multiple contributors or editors, face a risk of unauthorized content manipulation. This could be exploited in targeted attacks to mislead visitors or disrupt marketing and communication efforts. The vulnerability’s requirement for authenticated access limits exposure but does not eliminate risk in environments with many contributors or where credentials might be compromised. No direct availability or confidentiality impact reduces the severity but does not negate the reputational and operational risks involved.

To mitigate CVE-2025-11726, organizations should first verify if they are running Beaver Builder versions up to 2.9.4 and plan for immediate updates once patches are released by the vendor. In the absence of an official patch, administrators should restrict contributor-level access and above to trusted users only, minimizing the attack surface. Implement strict role-based access controls and audit user permissions regularly to ensure no unnecessary privileges are granted. Monitoring REST API usage and logging changes to global presets can help detect suspicious activity early. Additionally, consider implementing Web Application Firewalls (WAF) rules to monitor and potentially block unauthorized REST API calls targeting the 'fl-controls/v1' namespace. Educate contributors about the risks of credential compromise and enforce strong authentication mechanisms such as MFA to reduce the likelihood of unauthorized access. Finally, maintain regular backups of site configurations and presets to enable rapid restoration if unauthorized changes occur.