CVE-2025-7450 is a path traversal vulnerability identified in the letseeqiji gorobbs software, specifically affecting versions 1.0.0 through 1.0.8. The flaw exists in the ResetUserAvatar function within the controller/api/v1/user.go file of the API component. The vulnerability arises due to improper validation or sanitization of the 'filename' argument, which an attacker can manipulate to traverse directories outside the intended file path. This allows an attacker to access or overwrite arbitrary files on the server hosting the application. The vulnerability can be exploited remotely without requiring user interaction, but it does require low privileges (PR:L) on the system. The CVSS 4.0 base score is 5.3, indicating a medium severity level. The vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and limited impact on confidentiality, integrity, and availability (VC:N, VI:L, VA:L). Although the exploit has been publicly disclosed, no known exploits in the wild have been reported yet. The vulnerability's exploitation could lead to unauthorized file access or modification, potentially enabling further attacks such as privilege escalation or data leakage depending on the server configuration and file permissions. The absence of a patch link suggests that a fix may not yet be publicly available, increasing the urgency for mitigation through other means.

For European organizations using letseeqiji gorobbs versions 1.0.0 to 1.0.8, this vulnerability poses a risk of unauthorized access to sensitive files on the server, which could lead to data breaches or system compromise. Given the medium severity and the ability to exploit remotely without user interaction, attackers could leverage this flaw to gain foothold or escalate privileges within the affected environment. This is particularly concerning for organizations handling sensitive personal data or critical infrastructure, as unauthorized file access could expose confidential information or disrupt services. Additionally, the lack of an official patch increases the window of exposure. The impact is magnified in sectors with strict data protection regulations such as GDPR, where unauthorized data access can lead to significant legal and financial penalties. Organizations relying on this software for user management or avatar handling should be aware that the vulnerability affects the API component, which may be exposed to the internet, increasing the attack surface.

1. Immediate mitigation should include restricting access to the vulnerable API endpoint by implementing network-level controls such as IP whitelisting or VPN-only access to reduce exposure. 2. Apply strict input validation and sanitization on the 'filename' parameter to prevent path traversal sequences (e.g., '..', absolute paths). 3. Employ web application firewalls (WAFs) with custom rules to detect and block path traversal attack patterns targeting the ResetUserAvatar function. 4. Review and tighten file system permissions to ensure the application process has the minimum necessary rights, limiting the impact of any successful traversal. 5. Monitor logs for suspicious requests containing path traversal payloads and unusual file access patterns. 6. Engage with the vendor or community to obtain or develop patches or updates addressing this vulnerability. 7. Consider temporary disabling or restricting the avatar reset functionality if it is not critical to operations until a patch is available. 8. Conduct a thorough security review of the API and related components to identify and remediate similar input validation weaknesses.