Description
Cross-Site Request Forgery (CSRF) vulnerability in NotFound WPJobBoard allows Upload a Web Shell to a Web Server. This issue affects WPJobBoard: from n/a through n/a.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-11105
1. Vulnerability Assessment and Severity Evaluation
The EUVD entry EUVD-2025-11105 describes a Cross-Site Request Forgery (CSRF) vulnerability in the WPJobBoard plugin for WordPress. This vulnerability allows an attacker to upload a web shell to the web server, potentially leading to remote code execution (RCE). The severity of this vulnerability is rated with a CVSS Base Score of 9.6, which is considered critical.
CVSS Vector Breakdown:
- AV:N (Network Vector): The vulnerability is exploitable over the network.
- AC:L (Low Complexity): The attack requires low skill or resources to exploit.
- PR:N (No Privileges Required): No privileges are required to exploit the vulnerability.
- UI:R (User Interaction Required): The attack requires some form of user interaction.
- S:C (Changed Scope): The vulnerability affects a different security scope.
- C:H (High Confidentiality Impact): The vulnerability has a high impact on confidentiality.
- I:H (High Integrity Impact): The vulnerability has a high impact on integrity.
- A:H (High Availability Impact): The vulnerability has a high impact on availability.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- CSRF Exploitation: An attacker can trick a user into performing actions on the web application without their consent. This can be achieved through social engineering tactics such as phishing emails or malicious links.
- Web Shell Upload: Once the CSRF attack is successful, the attacker can upload a web shell, which is a script that allows remote administration of the server.
Exploitation Methods:
- Phishing: Sending crafted emails or messages to users with links that trigger the CSRF vulnerability.
- Malicious Links: Embedding malicious links in forums, social media, or other platforms that users might click on.
- Automated Scripts: Using automated scripts to exploit the vulnerability on a large scale.
3. Affected Systems and Software Versions
The vulnerability affects the WPJobBoard plugin for WordPress. Specifically, it impacts versions from n/a through n/a, indicating that the exact range of affected versions is not specified. However, the reference to version 5.11.1 suggests that versions prior to 5.11.1 are likely affected.
4. Recommended Mitigation Strategies
Immediate Actions:
- Update Plugin: Ensure that the WPJobBoard plugin is updated to the latest version (5.11.1 or higher).
- Disable Unused Features: Disable any unused features or functionalities within the plugin to reduce the attack surface.
- Implement CSRF Protection: Use CSRF tokens to validate requests and prevent unauthorized actions.
Long-Term Strategies:
- Regular Patching: Implement a regular patching and update schedule for all plugins and software.
- Security Audits: Conduct regular security audits and vulnerability assessments.
- User Education: Educate users about the risks of phishing and the importance of verifying links before clicking.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to European organizations using the WPJobBoard plugin. Given the critical nature of the vulnerability, it could lead to data breaches, unauthorized access, and potential disruption of services. The impact on confidentiality, integrity, and availability is high, making it a priority for cybersecurity teams to address promptly.
6. Technical Details for Security Professionals
Detection:
- Log Analysis: Monitor server logs for unusual activities, such as unexpected file uploads or unauthorized access attempts.
- Intrusion Detection Systems (IDS): Deploy IDS to detect and alert on suspicious activities related to CSRF and RCE attempts.
Response:
- Incident Response Plan: Have a well-defined incident response plan in place to quickly address any detected vulnerabilities or breaches.
- Forensic Analysis: Conduct forensic analysis to understand the scope and impact of any successful exploitation.
Prevention:
- Web Application Firewalls (WAF): Implement WAFs to filter and monitor HTTP traffic between the web application and the internet.
- Input Validation: Ensure robust input validation and sanitization to prevent malicious inputs.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their digital assets.