CVE-2025-1294 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the eForm - WordPress Form Builder plugin developed by WPQuark. This vulnerability exists in all versions up to and including 4.18.0 due to improper input sanitization and insufficient output escaping during web page generation. Specifically, the plugin fails to neutralize malicious input submitted through form fields, allowing unauthenticated attackers to inject arbitrary JavaScript code that is persistently stored and executed whenever a user accesses the compromised page. Stored XSS is particularly dangerous because the malicious script is served directly from the vulnerable website, increasing the likelihood of successful exploitation. The vulnerability does not require authentication, meaning any remote attacker can exploit it without credentials. Although no known exploits are currently reported in the wild, the nature of the vulnerability makes it a significant risk for websites using this plugin. The attack vector involves injecting malicious payloads into form submissions that are then rendered unsanitized in the website's pages, potentially leading to session hijacking, credential theft, defacement, or distribution of malware. The plugin's widespread use in WordPress sites for form building amplifies the potential attack surface. The vulnerability is classified under CWE-79, which covers improper neutralization of input during web page generation, a common and well-understood web security flaw. No official patches or updates have been linked yet, indicating that users must be vigilant and apply mitigations proactively.

For European organizations, the impact of this vulnerability can be significant, especially for those relying on WordPress sites with the eForm plugin for customer interaction, data collection, or internal workflows. Exploitation could lead to unauthorized access to sensitive user data, including personal information protected under GDPR, resulting in legal and financial repercussions. The ability for unauthenticated attackers to inject scripts can facilitate phishing attacks, session hijacking, or malware distribution, undermining user trust and damaging organizational reputation. Additionally, compromised websites may be blacklisted by search engines or security services, affecting business continuity and online presence. Sectors such as e-commerce, healthcare, finance, and government services in Europe, which often use WordPress for public-facing portals, are particularly vulnerable. The persistent nature of stored XSS means that even infrequent visitors can be affected, broadening the scope of impact. Given the medium severity rating and lack of known exploits, the threat is moderate but should not be underestimated due to the ease of exploitation and potential for cascading effects on confidentiality and integrity.

1. Immediate mitigation involves disabling or removing the eForm - WordPress Form Builder plugin until a secure patch is released. 2. If removal is not feasible, restrict form submission capabilities to authenticated and trusted users only, reducing the attack surface. 3. Implement Web Application Firewall (WAF) rules specifically targeting common XSS payload patterns to block malicious requests at the perimeter. 4. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the browser context. 5. Conduct thorough input validation and output encoding on all user-supplied data within the website, potentially through custom code or third-party security plugins that sanitize inputs and outputs. 6. Monitor website logs for unusual form submissions or script injections to detect attempted exploitation early. 7. Educate site administrators on the risks of XSS and the importance of timely plugin updates. 8. Regularly back up website data to enable quick restoration in case of compromise. 9. Engage with the plugin vendor or community to track patch releases and apply updates promptly once available.