CVE-2026-1534 is a SQL Injection vulnerability identified in version 1.0 of the code-projects Online Music Site, specifically within the /Administrator/PHP/AdminEditUser.php file. The vulnerability stems from improper handling of the 'ID' parameter, which is susceptible to injection of malicious SQL commands. This flaw allows an unauthenticated remote attacker to manipulate backend SQL queries, potentially extracting, modifying, or deleting sensitive data stored in the database. The vulnerability does not require user interaction or prior authentication, increasing its exploitation risk. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), and no user interaction (UI:N), with limited impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). Although no exploits are currently confirmed in the wild, proof-of-concept code has been publicly disclosed, which could facilitate attacks. The absence of patches or vendor advisories necessitates immediate mitigation efforts by users of this software. SQL Injection vulnerabilities are critical because they can lead to unauthorized data access, data corruption, or denial of service, depending on the attacker's goals and database permissions. The affected product is niche but may be used by digital music platforms or smaller enterprises managing user accounts and content. The vulnerability's presence in an administrative PHP script suggests that successful exploitation could allow attackers to manipulate user data or escalate privileges within the application environment.

For European organizations using the code-projects Online Music Site 1.0, this vulnerability poses a significant risk to the confidentiality, integrity, and availability of their user databases and potentially other backend systems. Attackers exploiting this SQL Injection could extract sensitive user information, including personal data, credentials, or payment details, leading to privacy violations and regulatory non-compliance under GDPR. Data integrity could be compromised by unauthorized modification or deletion of records, affecting business operations and trustworthiness. Availability impacts may arise if attackers execute destructive queries or cause database crashes, resulting in service outages. The remote and unauthenticated nature of the exploit increases the threat level, as attackers can launch attacks without insider access or user interaction. European digital music service providers, online content platforms, and organizations relying on this software for user management are particularly vulnerable. The public availability of exploit code raises the likelihood of opportunistic attacks, potentially leading to data breaches, reputational damage, and financial losses. Additionally, regulatory scrutiny and potential fines under European data protection laws could amplify the impact. Organizations with weak perimeter defenses or lacking database activity monitoring are at higher risk.

To mitigate CVE-2026-1534, organizations should immediately audit and update the affected code in /Administrator/PHP/AdminEditUser.php to implement proper input validation and sanitization for the 'ID' parameter. Employing parameterized queries or prepared statements is critical to prevent SQL Injection. If source code modification is not feasible immediately, deploying a Web Application Firewall (WAF) with custom rules to detect and block SQL Injection patterns targeting the vulnerable endpoint can provide interim protection. Network segmentation should be enforced to limit access to administrative interfaces only to trusted internal IPs or VPN users. Monitoring database logs for unusual queries or access patterns can help detect exploitation attempts early. Organizations should also review user privileges in the database to ensure the application operates with the least necessary permissions, minimizing potential damage from injection attacks. Regular backups of databases should be maintained to enable recovery in case of data corruption or deletion. Finally, organizations should engage with the vendor or community to obtain patches or updates and track vulnerability disclosures for this product to apply fixes promptly.