CVE-2026-28087 is a high-severity vulnerability identified in the ThemeREX Filmax WordPress theme. This vulnerability allows for improper control of filenames used in include or require statements in PHP programs, leading to potential local file inclusion (LFI) attacks. It affects all versions up to and including 1.1.11, posing a significant risk to organizations utilizing this theme. The CVSS score of 8.1 indicates a high severity level, emphasizing the critical nature of this issue.
Risk to organizations includes unauthorized access to sensitive files, data leakage, and potential server compromise. The attack vector is network-based, with a high attack complexity, necessitating a thorough understanding of the system's structure to exploit the vulnerability. The urgency for defenders is high, as immediate patching is required to mitigate the risks associated with this vulnerability.
Currently, there is no known exploit available, which provides a window of opportunity for organizations to address the vulnerability before it can be actively exploited. Organizations should prioritize patching immediately to ensure their systems remain secure.
Patching should be part of a broader security strategy that includes continuous monitoring and vulnerability management practices. This vulnerability highlights the importance of maintaining updated software and ensuring that security measures are in place to protect sensitive data.
Vulnerability Details
The vulnerability manifests due to inadequate validation of filename inputs within PHP include/require statements, commonly referred to as 'PHP Remote File Inclusion'. As a result, an attacker could manipulate these inputs to include arbitrary files from the server, leading to potential data exposure or system compromise.
The vulnerability has a CVSS 3.1 score of 8.1, categorized as high severity. The attack vector is network-based, with a high complexity in execution, requiring no privileges or user interaction. The impacts on confidentiality, integrity, and availability are all rated as high, indicating the severe nature of this vulnerability.
Technical Analysis
The root cause of CVE-2026-28087 is the improper validation of user-supplied input for file inclusion. Attackers may leverage this vulnerability by crafting a malicious request that manipulates the filename parameter to point to sensitive files on the server. The attack complexity is high, meaning that an attacker needs to have a good understanding of the application's structure and file locations to successfully exploit the vulnerability.
No user interaction is required, which makes this vulnerability particularly dangerous. Confidentiality, integrity, and availability impacts are all high, as the exploitation of this vulnerability could lead to unauthorized access to sensitive information, modification of files, and potentially complete server downtime.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2026-28087 is significant, particularly for organizations using the affected ThemeREX Filmax theme. The nature of the vulnerability allows attackers to execute arbitrary code or read sensitive files, which can lead to severe consequences, including data breaches and loss of customer trust.
The urgency assessment is high, given the CVSS score and the potential impact of exploitation. Organizations should act swiftly to implement patches and updates to their systems to mitigate the risk. The blast radius of this vulnerability is substantial, affecting all installations of the Filmax theme without proper mitigations in place.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of ThemeREX Filmax include all versions up to and including 1.1.11. Organizations utilizing this theme should verify their current version and ensure it is updated to the latest secure release.
Mitigation & Remediation
To remediate this vulnerability, organizations should apply the latest patch provided by ThemeREX for Filmax. If a patch is not available, it is recommended to remove the theme or implement alternative security measures, such as disabling file inclusion features if feasible.
Organizations should also consider implementing configuration hardening practices to limit file access, ensuring proper permissions are set for sensitive directories and files. Additionally, network controls should be established to monitor and restrict access to the application.
For ongoing assurance, organizations should engage in continuous penetration testing to identify similar vulnerabilities in their applications.
Detection Guidance
Organizations should monitor their logs for indicators of unauthorized file access attempts, particularly involving include statements. Behavioral anomalies such as unexpected file modifications or access patterns may indicate exploitation attempts.
Network signatures should be developed to identify suspicious patterns associated with file inclusion attacks. Implementing file integrity monitoring can also help detect unauthorized changes to critical files.
AppSecure Threat Intelligence Insight
The emergence of CVE-2026-28087 highlights a persistent issue within PHP applications regarding file inclusion vulnerabilities. As organizations increasingly rely on third-party themes and plugins, the potential for these vulnerabilities to be exploited grows.
Security teams should adopt a proactive approach by conducting regular audits of all installed themes and plugins. This includes maintaining an updated inventory of all components and ensuring timely patching of vulnerabilities.
Organizations may find value in developing a vulnerability management program to systematically address and remediate vulnerabilities as they are discovered.
Furthermore, leveraging tools for automated security assessments can enhance overall security posture. Continuous monitoring and assessment will help organizations stay ahead of emerging threats.
Finally, organizations should consider engaging in penetration testing to uncover any underlying vulnerabilities that may not be immediately apparent.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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