CVE-2025-6742 is a vulnerability classified under CWE-502 (Deserialization of Untrusted Data) affecting the SureForms – Drag and Drop Form Builder for WordPress plugin developed by Brainstormforce. The flaw exists in all versions up to and including 1.7.3, specifically in the delete_entry_files() function, which calls PHP's file_exists() function without validating or restricting the file path input. This improper handling allows unauthenticated attackers to inject malicious PHP objects into the application. However, the vulnerability alone does not directly lead to code execution or file manipulation because the plugin lacks a gadget POP (Property Oriented Programming) chain necessary to exploit the injected objects. Exploitation becomes feasible only if another plugin or theme installed on the same WordPress site contains a suitable POP chain, enabling attackers to leverage the injected objects to perform malicious actions such as arbitrary file deletion, sensitive data retrieval, or remote code execution. The vulnerability is remotely exploitable without authentication but requires user interaction, and the attack complexity is high due to the prerequisite of a POP chain in other components. The CVSS v3.1 base score is 7.5, reflecting high confidentiality, integrity, and availability impacts if exploited. No patches or fixes are currently linked, and no known exploits have been observed in the wild as of the publication date.

If exploited, this vulnerability can have severe consequences for organizations running WordPress sites with the SureForms plugin alongside other vulnerable plugins or themes. Potential impacts include unauthorized deletion of critical files, exposure of sensitive information, and remote code execution, which could lead to full site compromise. This can result in website defacement, data breaches, loss of customer trust, and disruption of business operations. Given WordPress's widespread use globally, especially among small to medium businesses and content-driven sites, the vulnerability poses a significant risk to a broad range of organizations. The dependency on the presence of a POP chain in other components somewhat limits the scope but does not eliminate the risk, especially in environments with multiple third-party plugins and themes. Attackers could chain this vulnerability with others to escalate privileges or maintain persistence, increasing the overall threat landscape.

Organizations should immediately audit their WordPress environments to identify installations of the SureForms plugin up to version 1.7.3 and assess the presence of other plugins or themes that may contain POP chains. Until an official patch is released, mitigation strategies include disabling or uninstalling the SureForms plugin if not essential, or restricting access to the WordPress admin and plugin directories via web application firewalls or IP whitelisting to limit exposure. Implementing strict input validation and sanitization on file paths within custom code can reduce risk. Monitoring logs for unusual file access or deletion attempts related to the plugin's functions is recommended. Additionally, maintaining a minimal plugin/theme footprint reduces the likelihood of exploitable POP chains. Once a patch becomes available, prompt application is critical. Employing runtime application self-protection (RASP) or endpoint detection and response (EDR) solutions can help detect exploitation attempts in real-time.