CVE-2025-58926 is a Local File Inclusion (LFI) vulnerability found in the axiomthemes Cerebrum WordPress theme, specifically affecting versions up to 1.12. The vulnerability arises from improper control over the filename parameter used in PHP include or require statements, allowing an attacker to manipulate the input to include arbitrary files from the server's filesystem. This can lead to disclosure of sensitive files such as configuration files, password stores, or source code, and in some cases, it may enable remote code execution if combined with other vulnerabilities or writable upload directories. The issue is categorized under PHP Remote File Inclusion but is technically a Local File Inclusion since it involves local files. The vulnerability was reserved in September 2025 and published in December 2025, with no CVSS score assigned yet and no known exploits in the wild. The lack of a patch link indicates that a fix may not be publicly available at the time of publication. The vulnerability affects websites using the Cerebrum theme, which is part of the axiomthemes portfolio, popular among WordPress users for building business and portfolio sites. Attackers exploiting this vulnerability could gain unauthorized access to sensitive data or execute arbitrary PHP code, compromising the confidentiality, integrity, and availability of affected web servers.

For European organizations, the impact of CVE-2025-58926 can be significant, particularly for those relying on WordPress sites with the Cerebrum theme for business operations, customer engagement, or internal portals. Exploitation could lead to unauthorized disclosure of sensitive information such as credentials, personal data, or proprietary business information stored on the server. In worst-case scenarios, attackers might achieve remote code execution, allowing them to pivot within the network, deploy malware, or disrupt services. This can result in reputational damage, regulatory penalties under GDPR for data breaches, and operational downtime. Small and medium enterprises using Cerebrum without dedicated security teams may be particularly vulnerable. The absence of a patch at the time of disclosure increases the window of exposure. Additionally, the vulnerability could be leveraged in targeted attacks against high-value European sectors such as finance, healthcare, and government, where WordPress is widely used for public-facing websites.

1. Immediately audit all WordPress sites to identify installations using the Cerebrum theme, especially versions up to 1.12. 2. Monitor official axiomthemes channels and Patchstack for the release of a security patch and apply updates promptly once available. 3. In the absence of an official patch, implement manual code review and remediation by sanitizing and validating all inputs controlling include/require statements to prevent arbitrary file inclusion. 4. Restrict web server file permissions to limit access to sensitive files and prevent unauthorized file reads. 5. Employ Web Application Firewalls (WAFs) with rules to detect and block suspicious file inclusion attempts or directory traversal patterns. 6. Conduct regular security scans and penetration tests focusing on LFI and RFI vulnerabilities. 7. Educate site administrators on the risks of using outdated themes and the importance of timely updates. 8. Consider isolating WordPress instances in segmented network zones to reduce lateral movement in case of compromise. 9. Enable detailed logging and alerting on web server errors and unusual file access patterns to detect exploitation attempts early.