CVE-2025-0394 is a high-severity vulnerability affecting the Groundhogg plugin for WordPress, specifically due to missing file type validation in the gh_big_file_upload() function. This vulnerability allows authenticated attackers with Author-level access or higher to upload arbitrary files to the server of the affected site, potentially leading to remote code execution. The CVSS score for this vulnerability is 8.8, indicating a high level of risk.
The vulnerability was published on January 14, 2025, and it affects all versions of the plugin up to and including version 3.7.3.5. Organizations using this plugin should assess their exposure and take immediate actions to mitigate the associated risks. The exploitation status is currently deferred, but the potential for exploitation remains significant.
Risk to organizations includes unauthorized file uploads that could compromise server integrity and confidentiality. Given the nature of this vulnerability, organizations should prioritize patching immediately to prevent potential exploitation.
Ongoing monitoring and vulnerability management processes are essential in identifying and remediating such vulnerabilities effectively. Organizations should remain vigilant and keep their systems updated.
Vulnerability Details
The WordPress CRM, Email & Marketing Automation for WordPress | Award Winner — Groundhogg plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the gh_big_file_upload() function in all versions up to and including 3.7.3.5. It allows authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server, which may make remote code execution possible.
The CVSS score for this vulnerability is 8.8, classified as high severity. The metrics indicate that the attack vector is network-based, with low attack complexity, and requires low privileges. User interaction is not required, making this vulnerability particularly concerning.
Technical Analysis
Root cause analysis indicates that the vulnerability stems from inadequate validation of file types during upload processes. The attack vector is network-based, allowing attackers to exploit this weakness remotely. The attack complexity is classified as low, meaning minimal effort is required to exploit the vulnerability.
The privileges required for exploitation are low, as authenticated users with Author-level access can trigger this vulnerability. No user interaction is necessary, enhancing the risk of exploitation. The impacts on confidentiality, integrity, and availability are all high, potentially leading to severe consequences for affected organizations.
Risk & Impact Analysis
Organizations using the affected version of the Groundhogg plugin face significant risks. The potential for unauthorized file uploads allows attackers to compromise the server, resulting in data breaches and loss of sensitive information. The urgency for remediation is underscored by the high CVSS score of 8.8, indicating a pressing need for organizations to address this vulnerability in their patch management cycles.
With the vulnerability being exploitable by authenticated users, the blast radius could extend to many sites using the plugin. Organizations should prioritize patching immediately and consider conducting thorough security assessments to identify any additional risks.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of the Groundhogg plugin for WordPress prior to and including version 3.7.3.5 are affected by this vulnerability. Organizations should ensure they update to the latest version to mitigate this risk.
Mitigation & Remediation
Organizations should apply the latest patches provided by the vendor to remediate this vulnerability. For those unable to immediately apply updates, it is recommended to implement workarounds, such as disabling the file upload feature or restricting file types that can be uploaded. Regular configuration hardening and network controls should be enforced to enhance security.
For ongoing protection and to ensure vulnerabilities are identified and addressed, organizations should consider implementing penetration testing as part of their security strategy.
Detection Guidance
Organizations should monitor logs for any unusual file upload patterns or errors related to file type validation. Behavioral anomalies in user access levels should also be tracked to detect potential exploitation attempts. Implementing network signatures might aid in identifying malicious activity associated with this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-0394 lies in its demonstration of how missing validation can lead to severe security implications. This case highlights the importance of thorough security assessments during development and after deployment.
Security teams should be aware of patterns that indicate similar vulnerabilities across other plugins or applications. To strengthen defenses, organizations should enhance their vulnerability management programs and consider adopting a proactive approach to security.
Finally, organizations should review their penetration testing methodologies to ensure they are effectively addressing emerging vulnerabilities such as this one.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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