EUVD-2025-19622

Comprehensive Technical Analysis of EUVD-2025-19622

1. Vulnerability Assessment and Severity Evaluation

The vulnerability identified as EUVD-2025-19622 pertains to an "Improper Control of Generation of Code ('Code Injection')" issue in the bitto.Kazi Custom Login And Signup Widget. This vulnerability allows for code injection, which can lead to arbitrary code execution. The CVSS (Common Vulnerability Scoring System) base score of 9.1 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H breaks down as follows:

• Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources to exploit.
• Privileges Required (PR): High (H) - The attacker needs high-level privileges to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Changed (C) - The vulnerability affects a different security scope.
• Confidentiality (C): High (H) - The vulnerability has a high impact on the confidentiality of the system.
• Integrity (I): High (H) - The vulnerability has a high impact on the integrity of the system.
• Availability (A): High (H) - The vulnerability has a high impact on the availability of the system.

2. Potential Attack Vectors and Exploitation Methods

Given the nature of the vulnerability, potential attack vectors include:

• Remote Code Execution (RCE): An attacker with high-level privileges can inject malicious code into the Custom Login And Signup Widget, leading to arbitrary code execution on the server.
• Cross-Site Scripting (XSS): If the injected code is executed in a web context, it could lead to XSS attacks, compromising user sessions and data.
• Data Exfiltration: The attacker could use the injected code to exfiltrate sensitive data from the server.

Exploitation methods may involve:

• Direct Code Injection: Crafting and injecting malicious code directly into the widget's input fields.
• SQL Injection: If the injected code interacts with a database, it could lead to SQL injection attacks.
• Command Injection: Executing system commands through the injected code to gain control over the server.

3. Affected Systems and Software Versions

The vulnerability affects the Custom Login And Signup Widget from version n/a through 1.0. This implies that all versions up to and including 1.0 are vulnerable. Users of this widget should be particularly vigilant if they are running any version within this range.

4. Recommended Mitigation Strategies

To mitigate the risk associated with this vulnerability, the following strategies are recommended:

• Update to a Patched Version: Ensure that the Custom Login And Signup Widget is updated to a version that addresses this vulnerability. If a patch is not available, consider disabling the widget until a fix is released.
• Input Validation and Sanitization: Implement robust input validation and sanitization mechanisms to prevent code injection.
• Least Privilege Principle: Ensure that users and applications operate with the least privilege necessary to minimize the impact of potential exploits.
• Regular Security Audits: Conduct regular security audits and vulnerability assessments to identify and address similar issues proactively.
• Web Application Firewalls (WAF): Deploy WAFs to monitor and block malicious traffic targeting the vulnerable widget.

5. Impact on European Cybersecurity Landscape

The vulnerability poses a significant risk to the European cybersecurity landscape, particularly for organizations and individuals using the affected widget. The high severity score and the potential for remote code execution make it a critical concern. Organizations must prioritize patching and mitigation efforts to prevent potential data breaches and system compromises.

6. Technical Details for Security Professionals

For security professionals, the following technical details are pertinent:

• Vulnerability Identification: The vulnerability is identified by EUVD ID EUVD-2025-19622 and CVE ID CVE-2025-49029.
• Affected Product: Custom Login And Signup Widget by bitto.kazi.
• Affected Versions: n/a through 1.0.
• Exploitation Details: The vulnerability allows for code injection, which can be exploited to execute arbitrary code on the server.
• Mitigation Steps: Update the widget to a patched version, implement input validation, enforce least privilege, and deploy WAFs.
• References: For more information, refer to the Patchstack vulnerability database entry at Patchstack Reference.

By addressing this vulnerability promptly and effectively, organizations can significantly reduce the risk of exploitation and maintain the integrity and security of their systems.