CVE-2025-64498 is a Cross-Site Request Forgery (CSRF) vulnerability identified in Enalean's Tuleap software, an open-source suite widely used for software development management and collaboration. The vulnerability affects Community Edition versions below 17.0.99.1762444754 and Enterprise Edition versions prior to 17.0-2, 16.13-7, and 16.12-10. CSRF vulnerabilities allow attackers to induce authenticated users to perform unwanted actions on web applications without their consent. In this case, attackers can trick victims into changing tracker general settings, which are critical for managing issue tracking and project workflows. The CVSS 3.1 base score is 4.6 (medium severity), reflecting that the attack vector is network-based with low attack complexity but requires privileges and user interaction. The impact primarily affects integrity and availability, as unauthorized changes to tracker settings can disrupt project management processes or degrade system reliability. No confidentiality impact is noted. Exploitation does not require elevated privileges beyond those of the victim user, but the victim must be authenticated and interact with malicious content. No public exploits are known at this time. The vulnerability was reserved in early November 2025 and published in December 2025. The fix involves updating to the patched versions mentioned, which implement proper CSRF protections to validate requests and prevent unauthorized state changes. Given Tuleap's role in software development environments, this vulnerability could undermine project integrity and disrupt collaboration if exploited.

For European organizations, the vulnerability poses a risk to the integrity and availability of software development processes managed through Tuleap. Unauthorized changes to tracker settings could lead to mismanagement of issues, loss of data consistency, or denial of service in project tracking workflows. This can delay development cycles, introduce errors, and reduce operational efficiency. Organizations in sectors with stringent compliance requirements or critical software development activities (e.g., finance, healthcare, telecommunications) may face increased operational and reputational risks. Since exploitation requires authenticated users and user interaction, insider threats or targeted phishing campaigns could leverage this vulnerability. The lack of known exploits reduces immediate risk, but unpatched systems remain vulnerable to opportunistic or targeted attacks. The impact is more pronounced in organizations heavily reliant on Tuleap for project management and collaboration, especially those with distributed teams where remote exploitation is feasible.

The primary mitigation is to upgrade affected Tuleap installations to the fixed versions: Community Edition 17.0.99.1762444754 or Enterprise Editions 17.0-2, 16.13-7, and 16.12-10. Organizations should verify their current Tuleap versions and plan timely patching. Additionally, implement or verify the presence of robust CSRF protections such as anti-CSRF tokens, same-site cookies, and strict referer header validation. Limit user privileges to the minimum necessary to reduce the risk of privilege abuse. Conduct user awareness training to recognize and avoid phishing or social engineering attempts that could trigger CSRF attacks. Monitor logs and configuration changes for unusual activity indicative of exploitation attempts. Employ web application firewalls (WAFs) with rules to detect and block suspicious CSRF patterns. Finally, integrate vulnerability management processes to ensure timely updates of Tuleap and related software components.