CVE-2025-58933 is a Remote File Inclusion (RFI) vulnerability identified in the PHP theme 'Anubis' developed by axiomthemes, affecting versions up to and including 1.25. The vulnerability stems from improper control over the filename parameter used in PHP's include or require statements, which allows an attacker to manipulate the input to include arbitrary files. This can lead to Local File Inclusion (LFI) or Remote File Inclusion (RFI), where an attacker can execute malicious PHP code hosted on a remote server or access sensitive files on the server. The vulnerability does not require authentication, making it exploitable by unauthenticated remote attackers. Exploiting this flaw can result in remote code execution, full site takeover, data leakage, or pivoting within the network. Although no public exploits are reported yet, the nature of RFI vulnerabilities historically makes them highly attractive targets for attackers. The affected product, Anubis, is a WordPress theme, which means websites using this theme are vulnerable if not patched. The lack of a CVSS score indicates this is a newly disclosed vulnerability, but the technical details and typical impact of RFI vulnerabilities allow for a severity assessment. The vulnerability was reserved in September 2025 and published in December 2025, indicating recent discovery and disclosure. No official patches or mitigation links are currently provided, increasing the urgency for users to monitor vendor updates and apply fixes once available.

For European organizations, the impact of CVE-2025-58933 can be significant, especially for those relying on WordPress websites using the Anubis theme. Successful exploitation can lead to remote code execution, allowing attackers to take full control of the web server, deface websites, steal sensitive customer or business data, or use the compromised server as a foothold for further attacks within the corporate network. This can result in reputational damage, regulatory penalties under GDPR for data breaches, and operational disruptions. E-commerce sites, government portals, and critical infrastructure websites using the affected theme are particularly at risk. The vulnerability's ease of exploitation without authentication increases the threat level, potentially enabling widespread automated attacks. Additionally, the lack of known exploits in the wild currently provides a window for proactive mitigation, but also means organizations must act swiftly to prevent future exploitation. The impact extends beyond confidentiality to integrity and availability, as attackers could modify site content or cause denial of service.

1. Immediately monitor axiomthemes official channels for patches or updates addressing CVE-2025-58933 and apply them as soon as they become available. 2. Until a patch is released, disable or remove the Anubis theme from production environments if feasible. 3. Implement strict input validation and sanitization on any parameters used in include or require statements to prevent injection of arbitrary file paths. 4. Configure PHP settings to disable allow_url_include and allow_url_fopen directives to prevent remote file inclusion. 5. Employ Web Application Firewalls (WAF) with rules to detect and block suspicious file inclusion attempts targeting the affected theme. 6. Conduct regular security audits and code reviews of custom themes or plugins to identify similar vulnerabilities. 7. Restrict file permissions on web servers to limit the impact of potential file inclusion attacks. 8. Monitor web server logs for unusual requests that may indicate exploitation attempts. 9. Educate development and security teams about secure coding practices related to file inclusion. 10. Consider isolating web servers hosting vulnerable themes in segmented network zones to limit lateral movement if compromised.