CVE-2025-5059 is a vulnerability identified in Campcodes Online Shopping Portal version 1.0, specifically located in the /admin/edit-subcategory.php file. The vulnerability arises from improper validation of the productimage1, productimage2, and productimage3 parameters, which allows an attacker to perform unrestricted file uploads. This means that an attacker with access to the administrative interface can upload arbitrary files without restrictions on file type or content. The vulnerability is exploitable remotely, and no user interaction is required once the attacker has the necessary privileges. The CVSS 4.0 vector indicates that the attack requires high privileges (PR:H), no user interaction (UI:N), and can be performed remotely (AV:N). The impact on confidentiality, integrity, and availability is low individually but combined with the ability to upload arbitrary files, it can lead to significant compromise if exploited further. Although the CVSS score is 5.1 (medium severity), the unrestricted upload could be leveraged to deploy web shells or malicious scripts, potentially leading to full system compromise if the attacker can execute uploaded files. No known exploits are currently reported in the wild, and no patches have been published yet. The vulnerability affects only version 1.0 of the Campcodes Online Shopping Portal, which is a niche e-commerce platform.

For European organizations using Campcodes Online Shopping Portal 1.0, this vulnerability poses a moderate risk. If exploited, attackers with administrative access could upload malicious files, potentially leading to unauthorized code execution, data breaches, or disruption of services. This could compromise customer data confidentiality and the integrity of the e-commerce platform, damaging reputation and causing financial losses. Given the administrative access requirement, the threat is more significant if internal accounts are compromised or if the portal is misconfigured to allow broader access. The vulnerability could also be leveraged as a foothold for lateral movement within the network. For organizations handling sensitive customer data or payment information, this vulnerability could lead to regulatory non-compliance under GDPR if exploited. The medium CVSS score reflects the need for caution but also indicates that exploitation requires some level of privilege, limiting the attack surface to some extent.

1. Immediate mitigation should focus on restricting access to the /admin/edit-subcategory.php page to trusted administrators only, using strong authentication mechanisms such as multi-factor authentication (MFA). 2. Implement strict server-side validation and sanitization of uploaded files, including checking file types, sizes, and content to prevent malicious uploads. 3. Apply the principle of least privilege to administrative accounts to reduce the risk of credential compromise. 4. Monitor server logs for unusual file upload activity or access patterns to detect potential exploitation attempts. 5. Deploy web application firewalls (WAF) with rules to detect and block suspicious file upload attempts. 6. If possible, isolate the upload directory from execution privileges to prevent uploaded files from being executed as code. 7. Regularly update and patch the Campcodes Online Shopping Portal once a vendor patch becomes available. 8. Conduct security audits and penetration testing focusing on file upload functionalities to identify similar weaknesses. 9. Educate administrative users about phishing and credential security to prevent account compromise.