CVE-2025-51683 is a blind SQL Injection vulnerability identified in mJobtime version 15.7.2, specifically targeting the /Default.aspx/update_profile_Server endpoint. The flaw allows unauthenticated attackers to send specially crafted POST requests that manipulate SQL queries executed by the backend database. Being a blind SQLi, attackers do not receive direct query results but can infer data through time delays or boolean responses, enabling extraction of sensitive information or modification of database contents. The vulnerability is critical due to its high CVSS score of 9.8, reflecting its network attack vector, no required privileges or user interaction, and full impact on confidentiality, integrity, and availability. Exploitation could lead to unauthorized data disclosure, data tampering, or denial of service by corrupting or deleting database records. No patches or known exploits are currently reported, but the vulnerability’s presence in a widely used endpoint suggests a high risk of future exploitation. The CWE-89 classification confirms this is a classic SQL Injection issue, often stemming from improper input sanitization and parameterized query usage. Organizations running mJobtime 15.7.2 should urgently assess their exposure and implement mitigations to prevent exploitation.

For European organizations, the impact of CVE-2025-51683 can be severe. The ability for unauthenticated attackers to execute arbitrary SQL commands threatens the confidentiality of sensitive personal and business data stored in mJobtime databases, potentially violating GDPR and other data protection regulations. Integrity of data is at risk, which could disrupt business operations relying on accurate job and profile information. Availability may also be compromised if attackers delete or corrupt critical data, causing service outages. Industries such as recruitment, HR services, and staffing agencies using mJobtime are particularly vulnerable. The reputational damage and regulatory penalties from a breach could be substantial. Additionally, the ease of exploitation increases the likelihood of automated attacks targeting exposed endpoints, raising the urgency for European entities to act swiftly.

1. Immediately deploy a Web Application Firewall (WAF) with rules specifically designed to detect and block SQL Injection attempts targeting the /Default.aspx/update_profile_Server endpoint. 2. Implement strict input validation and sanitization on all user-supplied data, especially POST parameters, ensuring use of parameterized queries or stored procedures to prevent direct SQL command injection. 3. Monitor database logs and application logs for unusual query patterns or repeated failed attempts indicative of blind SQLi exploitation. 4. Restrict database user permissions for the application to the minimum necessary, preventing destructive commands even if injection occurs. 5. Conduct a thorough code review of the affected endpoint and related database interaction code to identify and remediate unsafe SQL query constructions. 6. Prepare for patch deployment by coordinating with mJobtime vendors or developers, and apply updates promptly once available. 7. Educate development and security teams about blind SQL Injection risks and detection techniques to improve ongoing defenses.