CVE-2025-60046 is a vulnerability classified as Remote File Inclusion (RFI) in the HeartStar WordPress theme developed by axiomthemes, affecting versions up to and including 1.0.14. The vulnerability stems from improper validation and control of filenames used in PHP include or require statements, which are critical functions that incorporate external PHP code into the execution flow. When these filenames are not properly sanitized, an attacker can manipulate the input to include remote files hosted on attacker-controlled servers. This can lead to arbitrary code execution on the server, allowing attackers to run malicious scripts, steal sensitive data, modify website content, or gain persistent access. The vulnerability is notable because it does not require authentication, making it exploitable by unauthenticated remote attackers. Although no known exploits have been reported in the wild as of the publication date, the risk remains significant due to the nature of the flaw and the widespread use of WordPress themes. The HeartStar theme is used primarily in WordPress environments, which are popular for websites ranging from blogs to e-commerce platforms. The lack of a CVSS score indicates that the vulnerability is newly disclosed, but the technical characteristics align with high-risk RFI vulnerabilities. The vulnerability was reserved in late September 2025 and published in December 2025, indicating recent discovery and disclosure. The absence of patches at the time of reporting suggests that users must apply mitigations proactively to reduce exposure.

For European organizations, the impact of CVE-2025-60046 can be severe. Exploitation could lead to full website compromise, allowing attackers to execute arbitrary code, deface websites, steal customer data, or deploy malware such as ransomware. Organizations relying on the HeartStar theme for their public-facing websites, especially those handling sensitive customer information or financial transactions, face risks to confidentiality, integrity, and availability. Compromised websites can damage brand reputation and lead to regulatory penalties under GDPR if personal data is exposed. Additionally, attackers could use compromised servers as a foothold to pivot into internal networks, increasing the risk of broader organizational compromise. The lack of authentication requirements and the remote nature of the attack vector make it easier for attackers to exploit this vulnerability at scale. The absence of known exploits in the wild currently limits immediate widespread impact but does not reduce the urgency for mitigation, as threat actors often develop exploits rapidly after disclosure.

1. Monitor for and apply official patches or updates from axiomthemes for the HeartStar theme immediately upon release. 2. Until patches are available, disable or remove the HeartStar theme if not in active use. 3. Implement strict input validation and sanitization on all user-supplied inputs that influence file inclusion paths. 4. Employ web application firewalls (WAFs) with rules specifically designed to detect and block remote file inclusion attempts. 5. Restrict PHP configuration settings such as 'allow_url_include' to 'Off' to prevent inclusion of remote files. 6. Conduct thorough code reviews and penetration testing focusing on file inclusion mechanisms within the theme and custom plugins. 7. Maintain regular backups of website data and configurations to enable rapid recovery in case of compromise. 8. Monitor web server logs for suspicious requests that may indicate exploitation attempts. 9. Educate web administrators and developers about secure coding practices related to file inclusion vulnerabilities. 10. Consider isolating WordPress instances in segmented network zones to limit lateral movement if compromised.