CVE-2025-53203 is a Cross-Site Request Forgery (CSRF) vulnerability identified in the EDGARROJAS WooCommerce PDF Invoice Builder plugin, affecting versions up to 1.2.148. CSRF vulnerabilities allow attackers to trick authenticated users into submitting unwanted actions on a web application in which they are currently authenticated. In this case, the vulnerability exists in a WordPress plugin used to generate PDF invoices within WooCommerce, a widely used e-commerce platform. The vulnerability does not require the attacker to have privileges (PR:N) but does require user interaction (UI:R), such as clicking a malicious link or visiting a crafted webpage. The attack vector is network-based (AV:N), meaning exploitation can be attempted remotely over the internet. The vulnerability impacts the integrity of the system (I:L) but does not affect confidentiality or availability. This means an attacker could potentially manipulate invoice generation or related processes without authorization, possibly leading to fraudulent invoice creation or modification. However, no known exploits are currently reported in the wild, and no patches have been published yet. The CVSS v3.1 base score is 4.3, categorizing it as a medium severity issue. The vulnerability is classified under CWE-352, which specifically relates to CSRF attacks. Given the plugin's role in financial document generation, exploitation could undermine trust in transaction records and potentially facilitate financial fraud or accounting discrepancies within affected e-commerce sites.

For European organizations using WooCommerce with the EDGARROJAS PDF Invoice Builder plugin, this vulnerability poses a risk to the integrity of financial documentation. Manipulated invoices could lead to financial discrepancies, fraud, or compliance issues, especially under strict EU financial regulations such as GDPR and tax reporting laws. Although the vulnerability does not directly expose confidential data or cause service outages, the ability to alter invoice data without authorization can damage business reputation and customer trust. Small and medium-sized enterprises (SMEs) relying on WooCommerce for online sales are particularly at risk, as they may lack dedicated security teams to detect or mitigate such attacks promptly. Additionally, sectors with high regulatory scrutiny, such as finance, retail, and e-commerce, could face legal and financial penalties if invoice integrity is compromised. The requirement for user interaction means phishing or social engineering campaigns could be used to exploit this vulnerability, increasing the attack surface. The absence of known exploits suggests a window of opportunity for proactive mitigation before widespread exploitation occurs.

European organizations should take immediate steps to mitigate this vulnerability despite the absence of an official patch. First, implement strict CSRF protections at the application level, such as verifying CSRF tokens on all state-changing requests within the WooCommerce PDF Invoice Builder plugin. If possible, disable or restrict the plugin's functionality until a patch is available. Employ web application firewalls (WAFs) configured to detect and block suspicious CSRF attack patterns targeting WooCommerce endpoints. Educate users and administrators about the risks of phishing and social engineering attacks that could trigger CSRF exploits, emphasizing cautious behavior when clicking links or opening emails. Regularly monitor logs for unusual invoice generation or modification activities. Additionally, keep all WordPress and WooCommerce components updated to the latest versions to reduce the attack surface. Engage with the plugin vendor or community to track patch releases and apply them promptly once available. For organizations with in-house development capabilities, consider code reviews and temporary custom patches to enforce CSRF token validation in the affected plugin.