CVE-2026-28053 is a high-severity vulnerability classified as a PHP Remote File Inclusion flaw. This vulnerability allows improper control of filename for include or require statements within the ThemeREX Miller WordPress theme. Specifically, it permits PHP Local File Inclusion, which could lead to significant security risks.
With a CVSS score of 8.1, this vulnerability presents a high risk to organizations using the affected theme, specifically versions up to and including 1.3.3. The exploitation potential is considerable due to the nature of file inclusion vulnerabilities, which are commonly leveraged to execute arbitrary code or gain unauthorized access.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability. The urgency is heightened given the high impact on confidentiality, integrity, and availability as indicated by the attack vector being categorized as network-based.
As of now, the vulnerability has not been confirmed to have public exploits or proof of concepts available. However, its high exploitability score signals that it should be treated with utmost seriousness.
Vulnerability Details
The official description of CVE-2026-28053 indicates that it stems from improper control of filename for include or require statements in PHP. The vulnerability affects the ThemeREX Miller theme with versions from n/a through 1.3.3, as identified by the CWE-98 classification.
The vulnerability was published on March 5, 2026, and has a high severity level with a CVSS 3.1 score of 8.1. The attack vector is network-based, requiring no privileges and no user interaction. The scope remains unchanged, impacting confidentiality, integrity, and availability significantly.
Technical Analysis
The root cause of CVE-2026-28053 is attributed to improper validation of filenames used in PHP include or require statements. This failure allows an attacker to manipulate the input and include arbitrary files from the local server.
Given the high attack complexity, attackers may require specific knowledge about the environment to exploit this vulnerability effectively. However, the lack of required privileges and user interaction reduces the barrier for potential exploitation.
The confidentiality, integrity, and availability impacts are classified as high, indicating that successful exploitation could lead to unauthorized data access, data manipulation, or service disruption.
Risk & Impact Analysis
Risk to organizations includes unauthorized access to sensitive files, leading to data breaches or system compromise. The potential blast radius of this vulnerability is substantial, as it could affect all instances of the affected theme, thereby impacting numerous sites.
Organizations should address this vulnerability in their priority patch cycle due to its high severity and the risks associated with local file inclusion attacks. Given the current status of the vulnerability being deferred, it is imperative to remain vigilant and prepared for potential exploits.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of the ThemeREX Miller theme range from n/a to version 1.3.3. Organizations using these versions should take immediate action to upgrade or patch their installations.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to the latest version of the ThemeREX Miller theme. If an upgrade is not possible, implementing configuration hardening measures such as restricting file inclusions in PHP can mitigate the risk.
For further security, organizations may consider engaging in penetration testing to validate their security posture and identify any additional vulnerabilities.
Detection Guidance
Organizations should monitor logs for suspicious file inclusion attempts. Behavioral anomalies in user access patterns may indicate attempts to exploit this vulnerability. Additionally, network traffic should be analyzed for any unusual requests that could signify exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2026-28053 highlights the importance of securing applications against remote file inclusion vulnerabilities. This incident underscores the need for organizations to adopt comprehensive security measures, including regular software updates and vulnerability assessments.
Security teams should consider reviewing their vulnerability management program to ensure it is robust against emerging threats. Utilizing best practices in coding and security testing can help mitigate risks associated with vulnerabilities like CVE-2026-28053.
Additionally, understanding the trends in vulnerabilities, similar to those discussed in the 2025 vulnerability exposure severity trends can provide insights into potential future risks and necessary defensive strategies.
In conclusion, organizations should remain aware of vulnerabilities like CVE-2026-28053 and take proactive measures to protect their systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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