EUVD-2025-0121

Comprehensive Technical Analysis of EUVD-2025-0121

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-0121 is a cross-site scripting (XSS) flaw in the Events/Agenda module of Dolibarr v21.0.0-beta. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. The CVSS (Common Vulnerability Scoring System) base score of 9.0 indicates a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H breaks down as follows:

• AV:N - Attack Vector: Network
• AC:L - Attack Complexity: Low
• PR:L - Privileges Required: Low
• UI:R - User Interaction: Required
• S:C - Scope: Changed
• C:H - Confidentiality: High
• I:H - Integrity: High
• A:H - Availability: High

This high score reflects the potential for significant impact on confidentiality, integrity, and availability of the affected system.

2. Potential Attack Vectors and Exploitation Methods

Attackers can exploit this vulnerability by crafting a payload that injects malicious scripts into the Title parameter of the Events/Agenda module. The primary attack vectors include:

• Stored XSS: An attacker can store malicious scripts in the application's database, which are then executed when other users view the affected content.
• Reflected XSS: An attacker can trick a user into clicking a malicious link that reflects the script back to the user's browser.

Exploitation methods may involve:

• Phishing Emails: Sending emails with links to malicious payloads.
• Social Engineering: Tricking users into entering malicious input into the application.
• Automated Scripts: Using bots to inject malicious scripts into the application.

3. Affected Systems and Software Versions

The vulnerability specifically affects Dolibarr v21.0.0-beta. It is crucial to note that beta versions are often used for testing and may not be widely deployed in production environments. However, any organization using this beta version for testing or development purposes is at risk.

4. Recommended Mitigation Strategies

To mitigate this vulnerability, the following strategies are recommended:

• Update Software: Ensure that all instances of Dolibarr are updated to the latest stable version that includes the necessary security patches.
• Input Validation: Implement robust input validation and sanitization to prevent malicious scripts from being injected.
• Content Security Policy (CSP): Use CSP headers to restrict the execution of unauthorized scripts.
• User Education: Train users to recognize and avoid phishing attempts and other social engineering tactics.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant, particularly for organizations that rely on Dolibarr for their ERP and CRM needs. The potential for data breaches, unauthorized access, and service disruptions can have far-reaching consequences, including financial loss, reputational damage, and legal repercussions under GDPR.

6. Technical Details for Security Professionals

For security professionals, the following technical details are essential:

• Vulnerability Identification: The vulnerability is identified by EUVD-2025-0121 and aliases CVE-2024-55227 and GHSA-2v3r-gvq5-qqgh.
• Affected Module: The Events/Agenda module in Dolibarr v21.0.0-beta.
• Payload Injection: The Title parameter is the point of injection for the malicious payload.
• References:
  • NVD Detail
  • GitHub Commit 1
  • GitHub Commit 2
  • GitHub Commit 3
  • Gist Example
  • Dolibarr Repository
  • Dolibarr Security Policy

Security professionals should review these references for detailed information on the vulnerability and the necessary patches.

Conclusion

The XSS vulnerability in Dolibarr v21.0.0-beta poses a critical risk to organizations using this software. Immediate action is required to update the software and implement additional security measures to mitigate the risk. Continuous monitoring and regular updates are essential to maintain a robust cybersecurity posture.