CVE-2025-47446 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the Listamester product, affecting versions up to 2.3.6. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting a forged request to a web application in which the user is currently authenticated. This can lead to unauthorized actions being performed on behalf of the user without their consent. In this case, the vulnerability allows an attacker to craft malicious requests that, when executed by a logged-in user, could alter data or perform actions with the user's privileges. The CVSS 3.1 base score of 4.3 classifies this as a medium severity issue, reflecting that the attack vector is network-based, requires no privileges, but does require user interaction (such as clicking a malicious link). The impact primarily affects the integrity of the system, as confidentiality and availability are not impacted. No known exploits are currently reported in the wild, and no patches have been linked yet. The vulnerability is categorized under CWE-352, which is a well-known web security weakness related to insufficient request validation to prevent CSRF attacks.

For European organizations using Listamester, this vulnerability could allow attackers to manipulate user actions within the application without their knowledge, potentially leading to unauthorized changes in data or configurations. While the confidentiality and availability of systems are not directly impacted, the integrity of business-critical data could be compromised. This could affect operational workflows, data accuracy, and trust in the application. Organizations in sectors such as finance, healthcare, or government using Listamester for task or list management might face increased risk of unauthorized modifications, which could cascade into compliance issues under GDPR if personal data is involved. The requirement for user interaction means phishing or social engineering campaigns could be used to exploit this vulnerability, increasing the risk profile for organizations with less security-aware user bases.

To mitigate this CSRF vulnerability, organizations should implement anti-CSRF tokens in all state-changing requests within Listamester. This involves modifying the application to include unique, unpredictable tokens in forms and validating them server-side upon request submission. Additionally, enforcing the SameSite cookie attribute to 'Strict' or 'Lax' can reduce CSRF risks by limiting cookie transmission in cross-site requests. Organizations should also educate users about the risks of clicking unsolicited links and consider deploying web application firewalls (WAFs) with rules designed to detect and block CSRF attack patterns. Monitoring user activity for unusual or unauthorized actions can help detect exploitation attempts. Since no patch is currently available, applying these compensating controls is critical. Regularly checking for vendor updates and applying patches promptly once released is also essential.