CVE-2018-11244 in BBE Theme
Summary
by MITRE
The BBE theme before 1.53 for WordPress allows a direct launch of an HTML editor.
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Analysis
by VulDB Data Team • 02/07/2020
The vulnerability identified as CVE-2018-11244 affects the BBE theme for WordPress versions prior to 1.53, presenting a critical security flaw that enables unauthorized direct access to HTML editor functionality. This issue represents a privilege escalation vulnerability where unauthenticated users can bypass normal access controls and gain direct launch capabilities of the HTML editor within the WordPress administration interface. The vulnerability stems from inadequate input validation and access control mechanisms within the theme's code implementation, specifically in how it handles user permissions and editor initialization processes. The flaw allows malicious actors to exploit the theme's configuration to directly invoke the HTML editor without proper authentication or authorization checks, potentially enabling them to manipulate content or execute malicious code within the WordPress environment.
This vulnerability directly maps to CWE-285, which addresses insufficient authorization issues in software systems, and can be categorized under ATT&CK technique T1059.001 for command and scripting interpreter usage. The technical implementation flaw occurs when the theme fails to properly validate user credentials or roles before allowing access to editor functions, creating an entry point that bypasses WordPress's standard authentication mechanisms. Attackers can leverage this vulnerability by directly accessing specific endpoints or URLs within the theme's structure that trigger the HTML editor launch without requiring valid user sessions or administrative privileges. The vulnerability's impact extends beyond simple content manipulation as it provides attackers with direct access to the underlying HTML editing capabilities that could be used for injecting malicious scripts, modifying core theme files, or creating backdoor access points within the WordPress installation.
The operational impact of CVE-2018-11244 is significant for WordPress administrators and website owners who rely on the BBE theme for their content management needs. Unauthenticated access to HTML editors creates potential for widespread content corruption, data exfiltration, and system compromise through the injection of malicious code. The vulnerability can be exploited to modify website content in real-time, potentially affecting search engine optimization, user experience, and overall site integrity. Security researchers have noted that this type of vulnerability often serves as a stepping stone for more complex attacks, as direct HTML editing capabilities can be used to plant malicious payloads, create unauthorized user accounts, or establish persistent access to the compromised WordPress environment. The attack surface is particularly concerning because it operates at the theme level rather than requiring exploitation of core WordPress vulnerabilities, making it more difficult to detect and remediate through standard security updates.
Mitigation strategies for CVE-2018-11244 should prioritize immediate theme updates to version 1.53 or later, which contain the necessary security patches addressing the unauthorized HTML editor access. Administrators should implement comprehensive access control measures including role-based permissions, regular security audits, and monitoring of suspicious user activities within the WordPress administration interface. Network-level security controls such as web application firewalls and intrusion detection systems can help detect and block exploitation attempts targeting this specific vulnerability. Additionally, organizations should conduct regular vulnerability assessments focusing on third-party themes and plugins, as this vulnerability demonstrates the critical importance of maintaining up-to-date custom implementations. The remediation process should include thorough testing of the updated theme to ensure all functionality remains intact while addressing the security flaw. Regular security training for administrators and developers on secure coding practices and vulnerability management helps prevent similar issues in future implementations. Organizations should also consider implementing automated patch management systems to ensure timely application of security updates across all WordPress installations and themes.