CVE-2025-7141 is a cross-site scripting (XSS) vulnerability identified in version 1.0 of the SourceCodester Best Salon Management System, specifically within the /panel/edit_plan.php file of the Update Staff Page component. This vulnerability arises due to insufficient input validation or output encoding, allowing an attacker to inject malicious scripts that execute in the context of a victim's browser. The vulnerability can be exploited remotely without authentication, although it requires user interaction (UI:P) to trigger the malicious payload. The CVSS 4.0 base score is 4.8, indicating a medium severity level. The attack vector is network-based (AV:N) with low attack complexity (AC:L), but requires high privileges (PR:H) and user interaction. The impact primarily affects the integrity of the application by enabling limited script execution (VI:L), with no direct impact on confidentiality or availability. The vulnerability scope is unchanged, and no privilege escalation or security bypass is indicated. Although no known exploits are currently active in the wild, the public disclosure of the exploit code increases the risk of exploitation. The vulnerability could be leveraged to perform session hijacking, defacement, or phishing attacks targeting salon management staff using the affected system. Given the nature of the software, which manages staff and possibly customer data, exploitation could lead to unauthorized actions within the management portal or social engineering attacks against employees.

For European organizations using the SourceCodester Best Salon Management System 1.0, this vulnerability poses a moderate risk. While the direct impact on confidentiality and availability is limited, successful exploitation could compromise the integrity of the management interface, potentially allowing attackers to execute malicious scripts that hijack sessions or manipulate displayed content. This could lead to unauthorized access to staff management functions or facilitate phishing campaigns targeting employees. Given that salon management systems may store sensitive customer and employee information, even limited script execution could be leveraged to gather personal data indirectly or disrupt business operations. The medium severity rating suggests that while the threat is not critical, it should not be ignored, especially in environments where the system is accessible over the internet or within internal networks with multiple users. European organizations with salons or service businesses using this system should be aware of the risk of targeted attacks exploiting this vulnerability, which could impact business reputation and regulatory compliance under GDPR if personal data is indirectly compromised.

To mitigate this vulnerability, organizations should first verify if they are running SourceCodester Best Salon Management System version 1.0 and specifically the vulnerable /panel/edit_plan.php component. Since no official patch links are provided, immediate mitigation steps include implementing strict input validation and output encoding on all user-supplied data fields within the Update Staff Page to prevent script injection. Web application firewalls (WAFs) can be configured to detect and block common XSS payloads targeting this endpoint. Restricting access to the management interface to trusted internal networks or via VPN can reduce exposure. Additionally, enforcing multi-factor authentication (MFA) for staff accounts can limit the impact of session hijacking attempts. Regular security awareness training for staff to recognize phishing attempts and suspicious behavior is recommended. Monitoring web server logs for unusual requests to /panel/edit_plan.php can help detect exploitation attempts. Organizations should also engage with the vendor or community to obtain or develop patches and apply them promptly once available.