CVE-2025-13119 identifies a Cross-Site Request Forgery vulnerability in Fabian Ros Simple E-Banking System version 1.0. CSRF vulnerabilities occur when a web application does not properly verify that requests originate from legitimate users, allowing attackers to craft malicious web requests that execute unwanted actions on behalf of authenticated users. In this case, the vulnerability affects an unspecified component of the e-banking system, enabling remote attackers to initiate unauthorized transactions or changes by exploiting the victim's active session. The CVSS 4.0 vector indicates the attack can be performed remotely (AV:N) with low attack complexity (AC:L), requires no authentication (PR:N), but does require user interaction (UI:P). The impact primarily affects data integrity (VI:L), with no direct confidentiality or availability impact. No scope change or privileges escalation is involved. Although no patches or exploit code are currently available, the public disclosure increases the risk of exploitation attempts. The vulnerability could be leveraged to perform fraudulent banking operations, manipulate user account settings, or initiate unauthorized fund transfers, posing significant risks to financial institutions and their customers. The lack of built-in CSRF protections such as anti-CSRF tokens or origin checks in the affected version likely contributes to this vulnerability.

For European organizations, the exploitation of this CSRF vulnerability could lead to unauthorized financial transactions, manipulation of user account data, and potential financial losses. Banks or financial institutions using the affected Simple E-Banking System 1.0 may face reputational damage, regulatory scrutiny, and customer trust erosion if attackers exploit this flaw. The integrity of banking operations could be compromised, potentially facilitating fraud or money laundering activities. Given the medium severity, the impact is significant but may be contained if proper security controls are in place. Organizations with high volumes of online banking users or those lacking multi-factor authentication and transaction verification mechanisms are at higher risk. Additionally, financial regulators in Europe emphasize strong cybersecurity controls, so exploitation could trigger compliance violations under frameworks like PSD2 and GDPR. The threat is more acute in countries with widespread adoption of Fabian Ros Simple E-Banking System or similar platforms, especially where smaller banks or credit unions rely on this software due to cost or simplicity.

To mitigate CVE-2025-13119, organizations should implement robust anti-CSRF protections, including the use of unique, unpredictable anti-CSRF tokens embedded in all state-changing forms and verified on the server side. Validating the HTTP Referer and Origin headers can provide additional request origin verification. Enforcing strict SameSite cookie attributes (e.g., SameSite=Strict or Lax) helps prevent cookies from being sent in cross-site requests. Multi-factor authentication (MFA) should be enforced for sensitive transactions to reduce the risk of unauthorized actions. User education campaigns should raise awareness about phishing and social engineering tactics that could facilitate CSRF attacks. Organizations should monitor web application logs for suspicious activity indicative of CSRF exploitation attempts. If possible, upgrading to a patched or newer version of the e-banking system that addresses this vulnerability is recommended. In the absence of vendor patches, deploying web application firewalls (WAFs) with custom rules to detect and block CSRF attack patterns can provide interim protection. Regular security assessments and penetration testing focused on CSRF and session management controls will help identify and remediate weaknesses.