CVE-2025-5254 is a Stored Cross-Site Scripting (XSS) vulnerability identified in Kron Technologies' Kron PAM product, affecting versions prior to 3.7. The vulnerability arises from improper neutralization of input during web page generation, classified under CWE-79. This flaw allows an attacker with high privileges and requiring user interaction to inject malicious scripts that are stored and subsequently executed in the context of other users accessing the affected web interface. The CVSS 3.1 base score is 6.1 (medium severity), with the vector indicating network attack vector (AV:N), low attack complexity (AC:L), requiring high privileges (PR:H), user interaction (UI:R), unchanged scope (S:U), and high impact on confidentiality and integrity (C:H/I:H), but no impact on availability (A:N). Exploitation could lead to unauthorized disclosure or modification of sensitive data managed by Kron PAM, a privileged access management solution, potentially undermining the security controls for privileged accounts. Although no known exploits are reported in the wild, the vulnerability poses a significant risk due to the sensitive nature of PAM systems and the potential for privilege escalation or lateral movement if exploited. The lack of available patches at the time of publication necessitates immediate attention to mitigate risk.

For European organizations, this vulnerability could have severe consequences given the critical role of PAM solutions in securing privileged credentials and access to sensitive systems. Exploitation could lead to unauthorized access to privileged accounts, data leakage, and manipulation of security policies, thereby increasing the risk of insider threats, data breaches, and compliance violations under regulations such as GDPR. The confidentiality and integrity impacts are particularly concerning, as attackers could exfiltrate sensitive information or alter configurations to maintain persistent access. The requirement for high privileges and user interaction somewhat limits exploitation scope but does not eliminate risk, especially in environments where multiple administrators or privileged users interact with the PAM interface. The absence of known exploits suggests limited current active threat but does not preclude targeted attacks against high-value European entities.

European organizations using Kron PAM should prioritize upgrading to version 3.7 or later once available to remediate this vulnerability. Until patches are released, organizations should implement strict access controls to limit the number of users with high privileges and enforce the principle of least privilege. Monitoring and logging of PAM interface interactions should be enhanced to detect anomalous activities indicative of exploitation attempts. Web application firewalls (WAFs) can be configured to detect and block typical XSS payloads targeting the PAM interface. Additionally, user training to recognize and avoid interacting with suspicious inputs or links within the PAM environment can reduce the risk of user interaction-based exploitation. Regular security assessments and penetration testing focused on the PAM system should be conducted to identify and remediate any residual vulnerabilities.