CVE-2023-4627 in LadiApp Plugin
Summary
by MITRE • 03/12/2024
The LadiApp plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_config() function in versions up to, and including, 4.4. This makes it possible for authenticated attackers with subscriber-level access and above to update the 'ladipage_config' option.
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 01/15/2025
The vulnerability identified in CVE-2023-4627 affects the LadiApp plugin for WordPress, specifically targeting versions up to and including 4.4. This represents a critical security flaw that undermines the integrity of the plugin's configuration management system. The issue stems from a fundamental lack of proper access control mechanisms within the plugin's codebase, creating an avenue for unauthorized data modification that could have significant implications for affected WordPress installations.
The technical flaw manifests in the save_config() function where a crucial capability check is absent or improperly implemented. This missing validation allows authenticated users with subscriber-level privileges or higher to manipulate the 'ladipage_config' option through the plugin's administrative interface. The vulnerability directly violates the principle of least privilege by failing to verify whether the requesting user possesses sufficient permissions to modify critical configuration data. According to CWE-284, this represents an improper access control vulnerability that enables attackers to perform actions beyond their intended authorization level, making it a clear violation of access control mechanisms.
The operational impact of this vulnerability extends beyond simple data modification, as it provides attackers with potential access to sensitive configuration parameters that could be leveraged for further exploitation. An authenticated attacker with subscriber-level access can modify core plugin settings, potentially altering page configurations, redirect rules, or other critical parameters that control how the plugin functions within the WordPress environment. This could lead to service disruption, data exfiltration, or even provide a foothold for more sophisticated attacks within the compromised system. The vulnerability's classification aligns with ATT&CK technique T1078 which covers valid accounts and T1546 which covers event trigger, as it allows for persistent access through legitimate user accounts.
Organizations running affected WordPress installations face significant risks from this vulnerability, particularly in environments where subscriber accounts might be compromised or where users have unnecessary elevated privileges. The attack surface is widened by the fact that the vulnerability requires only subscriber-level access, which is often granted to users who should not have administrative capabilities. This makes the vulnerability particularly concerning for multi-user environments where user roles and permissions are not properly managed. The lack of proper capability checks in the save_config() function creates a direct path for privilege escalation and data manipulation that could compromise the integrity of the entire WordPress installation.
Mitigation strategies should focus on immediate plugin updates to versions that address the missing capability check in the save_config() function. System administrators must ensure that all affected installations are updated promptly, as the vulnerability can be exploited by any user with subscriber-level access. Additionally, implementing role-based access controls and regularly auditing user permissions can help reduce the risk of exploitation. The vulnerability highlights the importance of proper input validation and capability checks in web applications, particularly those handling user configuration data. Organizations should also consider implementing additional monitoring and logging of configuration changes to detect potential exploitation attempts. Security teams should review their incident response procedures to ensure they can quickly identify and respond to unauthorized configuration modifications that might indicate exploitation of this vulnerability.