CVE-2025-13275 identifies a security vulnerability in the Iqbolshoh php-business-website product, specifically affecting the /admin/about.php file. The flaw allows an attacker with authenticated high privileges to upload files without restriction or validation, which can lead to arbitrary file uploads. Such unrestricted upload vulnerabilities are critical because they can enable attackers to upload malicious scripts or web shells, potentially leading to remote code execution, data breaches, or full system compromise. The vulnerability is remotely exploitable and does not require user interaction, but it does require the attacker to have high-level privileges, likely administrative access to the web application. The product uses a rolling release model, complicating patch management and version tracking, and no official patches or version updates have been disclosed yet. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:H - high privileges required), no user interaction (UI:N), and low impacts on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). The exploit has been publicly disclosed, increasing the risk of exploitation despite no current known exploits in the wild. This vulnerability primarily affects organizations that deploy the Iqbolshoh php-business-website platform, particularly those exposing administrative interfaces to the internet or internal networks accessible by multiple users. The vulnerability's presence in an administrative PHP script suggests that attackers could leverage it to upload web shells or malware, leading to further lateral movement or data exfiltration.

For European organizations, the impact of this vulnerability can be significant, especially for small and medium enterprises using the Iqbolshoh php-business-website platform for their online presence. Successful exploitation could lead to unauthorized code execution, data theft, defacement of websites, or pivoting into internal networks. Given the requirement for high privileges, the threat is more relevant in environments where administrative access controls are weak or compromised. The rolling release nature of the product may delay patch deployment, increasing exposure time. Organizations in sectors such as retail, professional services, and local government that rely on PHP-based business websites may face reputational damage, regulatory penalties under GDPR if personal data is compromised, and operational disruptions. The vulnerability could also be leveraged as a foothold for more sophisticated attacks targeting European supply chains or critical infrastructure if the affected systems are part of larger networks.

1. Restrict administrative access to the /admin/about.php endpoint using network segmentation, VPNs, or IP whitelisting to reduce exposure. 2. Implement strict file upload validation, including checking file types, sizes, and content signatures to prevent malicious files. 3. Employ web application firewalls (WAFs) with custom rules to detect and block suspicious upload attempts. 4. Monitor logs and alerts for unusual upload activity or access patterns to the admin interface. 5. Enforce strong authentication and authorization controls to ensure only trusted users have high privileges. 6. Regularly audit and review user privileges to minimize the number of users with administrative rights. 7. Engage with the vendor or community to track updates or patches despite the rolling release model. 8. Consider isolating the web application environment using containerization or sandboxing to limit impact if exploited. 9. Conduct penetration testing focused on file upload functionalities to identify and remediate weaknesses proactively.