CVE-2021-41433 is a critical SQL Injection vulnerability identified in version 1.0 of the Resumes Management and Job Application Website application developed by EGavilan Media. This vulnerability exists specifically in the login.php form, which is responsible for user authentication. The SQL Injection flaw allows an attacker to manipulate the backend SQL queries by injecting malicious SQL code through the login form inputs. This manipulation can lead to authentication bypass, enabling unauthorized access without valid credentials. The vulnerability is characterized by CWE-89, which denotes improper neutralization of special elements used in an SQL command ('SQL Injection'). The CVSS v3.1 base score is 9.8, indicating a critical severity with network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), unchanged scope (S:U), and high impact on confidentiality (C:H), integrity (I:H), and availability (A:H). The lack of authentication and user interaction requirements means the vulnerability can be exploited remotely and automatically. Although no patches or vendor project/product details are provided, the vulnerability poses a severe risk to any deployment of this application version. Exploitation could allow attackers to bypass authentication, gain unauthorized access to sensitive user data, modify or delete data, and potentially disrupt service availability. No known exploits in the wild have been reported yet, but the critical nature and ease of exploitation make it a significant threat.

For European organizations using the affected Resumes Management and Job Application Website application version 1.0, this vulnerability could lead to severe consequences. Unauthorized access to the application could expose sensitive personal data of job applicants and employees, violating GDPR and other data protection regulations, resulting in legal and financial penalties. Attackers could manipulate or delete critical recruitment data, disrupting HR operations and damaging organizational reputation. The authentication bypass could also allow lateral movement within the network if the application is integrated with internal systems, increasing the risk of broader compromise. The high impact on confidentiality, integrity, and availability means organizations could face data breaches, operational downtime, and loss of trust from users and partners. Given the critical CVSS score and the nature of the vulnerability, European companies relying on this software for recruitment or HR management must treat this as a high-priority security incident.

Since no official patches are currently available, European organizations should implement immediate compensating controls. These include: 1) Restricting network access to the affected application by limiting exposure to trusted IP addresses or placing it behind a VPN or firewall with strict rules. 2) Employing Web Application Firewalls (WAFs) configured to detect and block SQL Injection attempts, specifically targeting login form inputs. 3) Conducting thorough code reviews and applying input validation and parameterized queries to the login.php form to neutralize SQL Injection vectors. 4) Monitoring application logs for suspicious login attempts or unusual query patterns indicative of exploitation attempts. 5) Isolating the application environment to minimize potential lateral movement if compromised. 6) Planning and executing an upgrade or migration to a patched or alternative solution as soon as a fix becomes available. 7) Educating IT and security teams about this vulnerability to ensure rapid detection and response. These measures go beyond generic advice by focusing on immediate network-level protections and application-specific hardening.