CVE-2025-69008 is a stored Cross-site Scripting (XSS) vulnerability identified in the Inboxify Sign Up Form, affecting versions up to and including 1.0.4. The vulnerability stems from improper neutralization of input during web page generation, which allows attackers to inject malicious scripts that are stored persistently within the application. When other users or administrators access the affected pages, the malicious scripts execute in their browsers, potentially leading to session hijacking, unauthorized actions, or data theft. The vulnerability requires the attacker to have high privileges (PR:H) and user interaction (UI:R) to exploit, which somewhat limits its ease of exploitation. The CVSS 3.1 base score is 5.9, categorized as medium severity, reflecting limited but non-negligible impacts on confidentiality, integrity, and availability. The vulnerability has a scope change (S:C), meaning the impact extends beyond the vulnerable component. No public patches or known exploits are currently available, emphasizing the need for proactive mitigation. The vulnerability is particularly relevant for web applications that rely on Inboxify Sign Up Form for user registration, especially where user input is not properly sanitized or encoded before rendering. Attackers could leverage this flaw to execute arbitrary JavaScript in the context of the victim’s browser, potentially compromising user accounts or defacing web content.

For European organizations, this vulnerability poses a moderate risk primarily to web-facing services that utilize the Inboxify Sign Up Form. Exploitation could lead to unauthorized access to user sessions, theft of sensitive information, or manipulation of web content, undermining user trust and potentially violating data protection regulations such as GDPR. The impact on confidentiality is limited but real, as attackers could access session tokens or personal data. Integrity could be compromised through unauthorized actions performed on behalf of users. Availability impact is generally low but could occur if attackers use the vulnerability to inject disruptive scripts. Organizations in sectors with high web interaction, such as e-commerce, finance, and public services, may face reputational damage and regulatory scrutiny if exploited. The requirement for high privileges and user interaction reduces the likelihood of widespread exploitation but does not eliminate risk, especially in environments with multiple administrators or privileged users. The absence of known exploits suggests the vulnerability is not yet actively targeted, providing a window for remediation.

To mitigate CVE-2025-69008, organizations should first verify if they use the Inboxify Sign Up Form version 1.0.4 or earlier and plan immediate upgrades once patches become available. In the absence of official patches, implement strict input validation and output encoding on all user-supplied data fields to prevent script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of any injected code. Limit the number of users with high privileges who can input data into the sign-up form to reduce the attack surface. Conduct regular security audits and penetration testing focused on XSS vulnerabilities. Educate administrators and users about the risks of interacting with suspicious inputs or links. Monitor web application logs for unusual activity that might indicate exploitation attempts. Finally, consider deploying Web Application Firewalls (WAFs) with rules tailored to detect and block XSS payloads targeting the Inboxify Sign Up Form.