CVE-2025-0876 is a Cross-Site Scripting (XSS) vulnerability classified under CWE-79, affecting the product IT's Workif developed by Isin Basi Advertisement Information Technologies Trade Inc. This vulnerability arises due to improper neutralization of input during web page generation, allowing an attacker to inject malicious scripts into web pages viewed by other users. The vulnerability affects versions up to 0 (likely indicating initial or early versions) and was published on October 3, 2025. The CVSS 3.1 base score is 4.1, indicating a medium severity level. The vector string (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L) reveals that the attack requires network access, high attack complexity, and privileges with user authentication, but no user interaction is needed. The impact on confidentiality, integrity, and availability is low but present. No known exploits are reported in the wild, and no patches have been linked yet. The vulnerability could allow an authenticated user with high privileges to inject scripts that may execute in the context of other users, potentially leading to session hijacking, unauthorized actions, or data leakage within the affected application environment. Given the nature of XSS, the threat is primarily to the integrity and confidentiality of user sessions and data handled by IT's Workif.

For European organizations using IT's Workif, this vulnerability could lead to unauthorized script execution within their web applications, potentially compromising user sessions, leaking sensitive information, or enabling further attacks such as privilege escalation or lateral movement within the network. Since the vulnerability requires authenticated access with high privileges, the risk is somewhat mitigated by internal access controls; however, insider threats or compromised credentials could be exploited. The impact on availability is low but could include disruption if malicious scripts cause application errors or crashes. Organizations in sectors that rely on IT's Workif for advertising or information technologies may face reputational damage, regulatory scrutiny under GDPR if personal data is exposed, and operational disruptions. The medium severity suggests that while the vulnerability is not critical, it should be addressed promptly to prevent exploitation, especially in environments with sensitive data or critical business functions.

1. Implement strict input validation and output encoding on all user-supplied data within IT's Workif to neutralize malicious scripts before rendering web pages. 2. Apply the principle of least privilege to user roles, ensuring that only necessary users have high privilege access to reduce the attack surface. 3. Monitor and audit user activities, especially those with high privileges, to detect anomalous behavior that may indicate exploitation attempts. 4. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in the application context. 5. Conduct regular security assessments and penetration testing focused on XSS vulnerabilities within IT's Workif deployments. 6. Stay updated with vendor advisories and apply patches promptly once available. 7. Educate users and administrators about the risks of XSS and safe handling of credentials to prevent insider threats or credential compromise. 8. Consider implementing Web Application Firewalls (WAF) with rules tailored to detect and block XSS payloads targeting IT's Workif.