CVE-2025-3485 is a high-severity vulnerability classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory, commonly known as Path Traversal) affecting the Allegra software product, specifically version 8.1.1.49. The vulnerability resides in the extractFileFromZip method, which fails to properly validate user-supplied file paths before performing file operations. This flaw allows an authenticated remote attacker to craft malicious input that traverses directories and potentially overwrites or executes arbitrary files outside the intended directory scope. Exploiting this vulnerability enables the attacker to execute arbitrary code within the context of the Allegra process, thereby compromising confidentiality, integrity, and availability of the affected system. The CVSS v3.0 base score is 7.2, indicating a high severity level, with attack vector being network-based (AV:N), low attack complexity (AC:L), but requiring high privileges (PR:H) and no user interaction (UI:N). The scope remains unchanged (S:U), and the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H). Although no public exploits are currently known in the wild, the vulnerability was tracked by ZDI under CAN-26524 and published in June 2025. The lack of patch links suggests that a fix may not yet be publicly available or is pending release. Given the nature of the vulnerability, it is critical for organizations using Allegra 8.1.1.49 to prioritize mitigation to prevent potential remote code execution attacks that could lead to full system compromise.

For European organizations, the impact of CVE-2025-3485 can be significant, especially for those relying on Allegra software in critical infrastructure, enterprise environments, or sensitive data processing. Successful exploitation could lead to unauthorized code execution, data breaches, disruption of services, and potential lateral movement within networks. This could affect confidentiality through data theft or exposure, integrity by unauthorized modification of files or configurations, and availability by causing system crashes or denial of service. Given that exploitation requires authentication with high privileges, insider threats or compromised credentials could be leveraged by attackers to exploit this vulnerability. The high impact on all security triad components makes this vulnerability a serious concern for compliance with European data protection regulations such as GDPR, as well as for maintaining operational continuity and trust. Organizations in sectors like finance, healthcare, government, and manufacturing could face severe operational and reputational damage if targeted.

1. Immediate mitigation should include restricting access to Allegra systems to trusted and authenticated users only, enforcing strong authentication mechanisms, and monitoring for suspicious activity related to file extraction or manipulation. 2. Implement strict input validation and sanitization on all user-supplied paths, especially those used in file operations like extractFileFromZip. 3. Apply the principle of least privilege by limiting user permissions and service accounts to only what is necessary, reducing the risk of high-privilege exploitation. 4. Network segmentation and application-layer firewalls can help contain potential exploitation attempts. 5. Monitor logs for unusual file access patterns or directory traversal attempts. 6. Stay alert for official patches or updates from Allegra and apply them promptly once available. 7. Conduct internal code reviews or penetration testing focusing on file handling functions to identify similar vulnerabilities. 8. Educate privileged users about the risks of credential compromise and enforce multi-factor authentication to reduce the risk of unauthorized access.