The vulnerability identified as CVE-2025-66097 is a Cross-Site Request Forgery (CSRF) issue found in the I Order Terms plugin developed by Igor Jerosimić, affecting versions up to 1.5.0. CSRF vulnerabilities occur when an attacker tricks an authenticated user into submitting a forged HTTP request to a web application, causing the application to perform unwanted actions on behalf of the user. In this case, the I Order Terms plugin lacks sufficient anti-CSRF protections such as synchronizer tokens or origin checks, allowing attackers to craft malicious web pages or links that, when visited by authenticated users, execute unauthorized commands like modifying order terms or settings. The vulnerability does not require the attacker to have direct access to the victim’s credentials but relies on the victim being logged into the vulnerable application. No CVSS score has been assigned yet, and no public exploits are currently known. The absence of patches or mitigation links suggests that the vendor has not yet released a fix, increasing the urgency for organizations to implement interim protective measures. The vulnerability primarily impacts the integrity of the application by enabling unauthorized state changes and could also affect availability if malicious requests disrupt normal operations. Confidentiality impact is limited but possible if sensitive order terms or user data are manipulated or exposed indirectly. The plugin is typically used in e-commerce or contract management systems, making it a target for attackers seeking to manipulate transactional data or contractual agreements.

For European organizations, the impact of this CSRF vulnerability can be significant, especially for those relying on the I Order Terms plugin in their e-commerce or contract management workflows. Unauthorized actions could lead to fraudulent changes in order terms, contractual conditions, or other critical transactional data, potentially causing financial loss, legal disputes, or reputational damage. The integrity of business processes is at risk, and if attackers manipulate terms undetected, it could lead to compliance violations under regulations like GDPR. Additionally, if attackers leverage this vulnerability to perform repeated unauthorized actions, it could degrade service availability or disrupt normal operations. The confidentiality impact is moderate since the vulnerability does not directly expose sensitive data but could indirectly lead to data leakage if combined with other vulnerabilities. European organizations with high transaction volumes or those in regulated sectors such as finance, legal, or retail are particularly vulnerable. The lack of known exploits currently provides a window for proactive mitigation, but the ease of exploitation once a proof-of-concept is developed means organizations must act swiftly.

To mitigate this CSRF vulnerability effectively, organizations should implement the following specific measures: 1) Apply any vendor patches immediately once available; monitor the vendor’s communications for updates. 2) If patches are not yet available, implement anti-CSRF tokens (synchronizer tokens) in all state-changing forms and API endpoints within the I Order Terms plugin. 3) Enforce strict validation of the HTTP Referer and Origin headers to ensure requests originate from trusted sources. 4) Employ Content Security Policy (CSP) headers to restrict the domains that can interact with the application. 5) Use SameSite cookie attributes (preferably 'Strict' or 'Lax') to limit cookie transmission in cross-site contexts. 6) Conduct thorough code reviews and penetration testing focused on CSRF vectors in the plugin and related components. 7) Educate users and administrators about the risks of CSRF and encourage cautious behavior when browsing untrusted sites while authenticated. 8) Monitor logs for unusual or unauthorized changes to order terms or settings that could indicate exploitation attempts. 9) Consider deploying Web Application Firewalls (WAFs) with rules designed to detect and block CSRF attack patterns. These measures, combined, will reduce the risk of exploitation until a formal patch is released.