CVE-2025-44024 is a Cross-Site Scripting (XSS) vulnerability identified in the Pichome system version 2.1.0 and earlier. The vulnerability arises from insufficient sanitization of user inputs in the login form, specifically within the username and password fields. This flaw allows an attacker to inject malicious JavaScript code during the login process. When a victim interacts with the compromised login form, the injected script can execute in the context of the user's browser session. This can lead to a range of malicious outcomes including session hijacking, credential theft, redirection to malicious sites, or execution of unauthorized actions on behalf of the user. The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation. The CVSS v3.1 base score is 6.1, indicating a medium severity level. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N) reveals that the attack can be executed remotely over the network without privileges, requires user interaction (the user must attempt to log in), and impacts confidentiality and integrity with a scope change, but does not affect availability. No known exploits are currently reported in the wild, and no official patches have been linked yet. Given the nature of the vulnerability, it primarily targets web applications and relies on user interaction, which somewhat limits its exploitation but still poses a significant risk especially in environments where sensitive data is handled through the affected login interface.

For European organizations using the Pichome system, this XSS vulnerability can lead to unauthorized access to user sessions, theft of sensitive credentials, and potential compromise of internal systems if attackers leverage stolen session tokens or credentials. The confidentiality and integrity of user data are at risk, which can result in data breaches, regulatory non-compliance (e.g., GDPR violations), and reputational damage. Since the vulnerability affects the login form, attackers could target administrative or privileged users, amplifying the potential damage. The scope change in the CVSS vector indicates that exploitation could affect resources beyond the initially vulnerable component, possibly impacting other parts of the web application or connected systems. Additionally, phishing campaigns could be enhanced by injecting malicious scripts that mimic legitimate login behaviors, increasing the risk of social engineering attacks. European organizations with public-facing Pichome login portals are particularly vulnerable, especially those in sectors like finance, healthcare, and government where sensitive data protection is critical.

Organizations should immediately review and enhance input validation and output encoding on the login form fields to ensure all user inputs are properly sanitized against script injection. Implement Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. Employ HTTP-only and secure cookies to protect session tokens from being accessed via injected scripts. Conduct thorough security testing, including automated and manual penetration tests focusing on input fields and authentication mechanisms. Until official patches are released, consider deploying Web Application Firewalls (WAFs) with rules targeting common XSS payloads to detect and block malicious requests. Educate users about the risks of interacting with suspicious login forms and encourage the use of multi-factor authentication (MFA) to reduce the impact of credential compromise. Monitor logs for unusual login attempts or script injection patterns. Finally, maintain close communication with the Pichome system vendor or community for updates and patches addressing this vulnerability.