CVE-2025-3848 in Download Manager and Payment Form
Summary
by MITRE • 07/02/2025
The Download Manager and Payment Form WordPress Plugin – WP SmartPay plugin for WordPress is vulnerable to privilege escalation via account takeover in versions 1.1.0 to 2.7.13. This is due to the plugin not properly validating a user's identity prior to updating their email through the update() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to change arbitrary user's email addresses, including administrators, and leverage that to reset the user's password and gain access to their account.
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Analysis
by VulDB Data Team • 06/15/2026
The WP SmartPay plugin vulnerability represents a critical privilege escalation flaw that undermines the security model of WordPress installations. This vulnerability exists within versions 1.1.0 through 2.7.13 of the WP SmartPay plugin, which is widely used for handling downloads and payment forms on WordPress websites. The flaw stems from insufficient input validation mechanisms within the plugin's update() function, creating a pathway for authenticated attackers to manipulate user account information without proper authorization. The vulnerability specifically targets the email update functionality, which serves as a critical entry point for account takeover attempts.
The technical implementation of this vulnerability allows attackers with Subscriber-level access or higher to exploit a missing validation check that should verify user identity before permitting email modifications. This validation gap creates a scenario where any authenticated user can submit requests to update email addresses for other users within the system. The flaw operates at the application layer and directly violates the principle of least privilege, as it enables users to perform actions beyond their intended access level. According to CWE-284, this represents an improper access control vulnerability where the system fails to properly enforce authorization checks. The vulnerability is particularly dangerous because it can be exploited to target high-privilege accounts, including administrators, making it a significant threat to overall system security.
The operational impact of this vulnerability extends far beyond simple email modification, as it provides attackers with a reliable method for account takeover and persistent access to compromised systems. Once an attacker successfully changes an administrator's email address, they can leverage the standard WordPress password reset functionality to gain full control over the compromised account. This creates a persistent threat vector that can be used for data exfiltration, privilege escalation, or as a stepping stone for further attacks within the compromised environment. The attack chain typically involves identifying target users, modifying their email addresses, and then using the reset password mechanism to establish unauthorized access. This vulnerability aligns with ATT&CK technique T1566, which covers credential harvesting through various methods including account takeover, and T1078, which addresses legitimate credentials usage for persistence.
The mitigation strategy for this vulnerability requires immediate patching of the affected plugin versions to implement proper user identity validation before allowing email updates. Administrators should also implement additional security measures such as monitoring for unauthorized email changes and implementing multi-factor authentication for all user accounts. Regular security audits of installed plugins should be conducted to identify similar validation gaps, and access controls should be reviewed to ensure that users have appropriate permissions for their roles. Organizations should consider implementing web application firewalls and intrusion detection systems to monitor for exploitation attempts. The vulnerability demonstrates the critical importance of proper input validation and access control implementation in web applications, as highlighted by security frameworks such as the OWASP Top Ten and NIST cybersecurity guidelines.