CVE-2025-49239 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the 'Print Invoice & Delivery Notes for WooCommerce' plugin developed by tychesoftwares. This plugin is widely used in WooCommerce-based e-commerce websites to generate and manage invoices and delivery notes. The vulnerability affects versions up to 5.5.0. CSRF vulnerabilities allow an attacker to trick an authenticated user into submitting a forged request to the web application without their consent or knowledge. In this case, an attacker could craft a malicious web page or link that, when visited by an authenticated WooCommerce administrator or user with sufficient privileges, could trigger unauthorized actions related to invoice or delivery note printing or management. The CVSS 3.1 base score is 5.4 (medium severity), with the vector indicating that the attack can be performed remotely over the network (AV:N), requires low attack complexity (AC:L), does not require privileges (PR:N), but does require user interaction (UI:R). The impact is limited to integrity and availability, with no confidentiality loss reported. The vulnerability does not require prior authentication, increasing its risk profile. No known exploits are currently in the wild, and no patches have been linked yet. The vulnerability is categorized under CWE-352, which is a well-known class of CSRF issues where state-changing requests lack proper anti-CSRF tokens or validation mechanisms. This can lead to unauthorized changes in the system's state, such as generating or modifying invoices or delivery notes without the user's consent. Given the plugin's role in financial document management, exploitation could disrupt business operations or cause fraudulent document generation or denial of service in invoice processing workflows.

For European organizations, especially those operating e-commerce platforms using WooCommerce with the affected plugin, this vulnerability poses a risk of unauthorized manipulation of invoice and delivery note generation processes. This could lead to operational disruptions, financial discrepancies, and potential compliance issues with European financial regulations such as GDPR and tax reporting standards. Attackers could exploit this vulnerability to cause denial of service by triggering excessive or malformed invoice generation, or integrity issues by creating fraudulent or altered invoices, potentially impacting accounting and auditing processes. While confidentiality is not directly impacted, the integrity and availability of critical financial documents are at risk, which can undermine trust with customers and partners. Organizations may face reputational damage and regulatory scrutiny if such attacks lead to financial inaccuracies or data mishandling. The requirement for user interaction means phishing or social engineering could be used to lure administrators into executing malicious requests, increasing the threat vector. Given the widespread use of WooCommerce in Europe’s e-commerce sector, the impact could be significant if not mitigated promptly.

European organizations should immediately verify if they use the 'Print Invoice & Delivery Notes for WooCommerce' plugin and identify the version in use. Until an official patch is released, organizations should implement the following mitigations: 1) Restrict administrative access to the WooCommerce backend by IP whitelisting or VPN-only access to reduce exposure to CSRF attacks. 2) Employ web application firewalls (WAFs) with custom rules to detect and block suspicious CSRF attack patterns targeting invoice and delivery note endpoints. 3) Educate administrators and users with backend access about phishing and social engineering risks to reduce the likelihood of user interaction-based exploitation. 4) Temporarily disable or limit the functionality of the affected plugin if feasible, especially if invoice generation can be handled manually or through alternative means. 5) Monitor logs for unusual invoice or delivery note generation activities that could indicate exploitation attempts. 6) Follow closely for official patches or updates from tychesoftwares and apply them promptly once available. 7) Implement or verify the presence of anti-CSRF tokens and validation mechanisms in custom or third-party plugins to prevent similar vulnerabilities.