CVE-2025-58899 is a Remote File Inclusion (RFI) vulnerability found in the AncoraThemes Frame product, affecting versions up to 2.4.0. The vulnerability arises from improper validation and control of filenames used in PHP include or require statements, allowing an attacker to supply a remote URL that the application will include and execute as PHP code. This leads to remote code execution (RCE), enabling attackers to run arbitrary commands on the affected server. The vulnerability is exploitable remotely over the network without authentication or user interaction, although it requires a high level of attack complexity, likely due to some environmental or configuration constraints. The CVSS v3.1 score is 8.1, reflecting high impact on confidentiality, integrity, and availability. The flaw can be leveraged to compromise sensitive data, deface websites, deploy malware, or use the server as a pivot point for further attacks. AncoraThemes Frame is a PHP-based framework used in web development, often integrated with WordPress themes or other CMS platforms. The lack of a patch link suggests that a fix may not yet be publicly available, increasing the urgency for mitigations. No known exploits have been reported in the wild, but the vulnerability's nature makes it a prime target for attackers once weaponized. The vulnerability was reserved in early September 2025 and published in December 2025, indicating recent discovery and disclosure.

For European organizations, this vulnerability poses a significant risk to web-facing applications built using AncoraThemes Frame. Successful exploitation can lead to full system compromise, data breaches involving personal and corporate data, defacement of websites, and disruption of services. Given the GDPR regulations, data breaches resulting from exploitation could lead to substantial fines and reputational damage. Organizations in sectors such as e-commerce, government, education, and media that rely on PHP-based web frameworks are particularly vulnerable. The ability to execute arbitrary code remotely without authentication means attackers can operate stealthily and persistently. Additionally, compromised servers can be used to launch further attacks within internal networks or as part of botnets. The lack of known exploits currently provides a window for proactive defense, but the high severity score underscores the urgency of addressing this issue.

1. Immediately audit all web applications using AncoraThemes Frame to identify affected versions (<= 2.4.0). 2. Apply vendor patches as soon as they become available; monitor AncoraThemes and security advisories closely. 3. In the absence of patches, implement web application firewall (WAF) rules to detect and block attempts to exploit file inclusion vulnerabilities, especially those containing suspicious URL parameters. 4. Disable allow_url_include and allow_url_fopen directives in PHP configurations to prevent remote file inclusion. 5. Employ input validation and sanitization on all user-supplied parameters that influence include or require statements. 6. Restrict file inclusion to local whitelisted directories using PHP’s realpath checks or similar mechanisms. 7. Conduct regular code reviews and penetration testing focused on file inclusion and remote code execution vectors. 8. Monitor logs for unusual requests or errors related to file inclusion. 9. Educate developers on secure coding practices to avoid dynamic includes with untrusted input. 10. Consider isolating vulnerable applications in segmented network zones to limit lateral movement if compromised.