CVE-2025-9266 in Accelerate Plugin
Summary
by MITRE • 08/06/2026
The Accelerate theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the enqueue_scripts() function in all versions up to, and including, 1.5.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install and activate the ThemeGrill Demo Importer plugin.
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Analysis
by VulDB Data Team • 08/06/2026
The vulnerability identified in the Accelerate theme for WordPress represents a critical authorization flaw that undermines the platform's security model. This weakness exists within the enqueue_scripts() function where proper capability checks are absent, allowing authenticated users with minimal privileges to escalate their access and manipulate the site's core functionality. The vulnerability affects all versions up to and including 1.5.3, creating a substantial attack surface for malicious actors who can leverage this flaw to gain unauthorized control over theme operations.
The technical implementation of this vulnerability stems from the absence of proper permission validation within the theme's script loading mechanism. When an authenticated user with subscriber-level access or higher invokes the enqueue_scripts() function, the system fails to verify whether the user possesses adequate privileges to perform sensitive operations. This missing capability check creates a direct pathway for privilege escalation, enabling attackers to bypass normal WordPress authorization controls that should prevent unauthorized modifications to core theme components.
The operational impact of this vulnerability extends beyond simple data modification capabilities, as it provides attackers with the means to install and activate third-party plugins such as the ThemeGrill Demo Importer. This plugin installation capability creates additional attack vectors since demo importer plugins often contain code execution features or can be used to deploy malicious payloads. The combination of unauthorized plugin installation and theme modification allows attackers to fundamentally alter site functionality, potentially leading to complete system compromise or data exfiltration.
From a cybersecurity perspective, this vulnerability aligns with CWE-284, which addresses improper access control in software systems, and represents a clear violation of the principle of least privilege. The attack pattern follows typical threat actor methodologies documented in the MITRE ATT&CK framework under the T1068 technique for bypassing system restrictions. The vulnerability's exploitation requires minimal privileges but results in significant impact, making it particularly dangerous for WordPress environments where subscribers might have access to sites with sensitive data or business-critical functionality.
The security implications of this flaw extend to organizations that rely on WordPress for their digital presence, as it could enable attackers to establish persistent backdoors through plugin installation or modify core theme files to inject malicious code. The vulnerability also highlights the importance of proper input validation and capability checking in WordPress themes, particularly those that interact with system-level operations. Organizations should immediately implement patch management procedures to address this vulnerability and conduct thorough security assessments to identify similar flaws in other installed themes or plugins.
Mitigation strategies should include immediate upgrading to patched versions of the Accelerate theme, implementing role-based access controls to limit subscriber capabilities, and monitoring for unauthorized plugin installations. Security teams should also consider deploying web application firewalls and conducting regular security audits to identify potential privilege escalation vulnerabilities across all installed WordPress components. The vulnerability serves as a reminder that even seemingly minor flaws in theme implementations can create significant security risks when combined with the extensibility features of content management systems.