CVE-2025-52624 identifies a vulnerability in HCL AION version 2.0 related to an incorrect configuration of the Content-Security-Policy (CSP) header, which is intended to restrict the execution of unauthorized scripts in web applications. The vulnerability is categorized under CWE-1032, which involves bypassing security controls—in this case, the script allowlist enforced by CSP. Due to the misconfiguration, attackers can inject and execute unauthorized scripts, potentially leading to cross-site scripting (XSS) or other injection-based attacks. These attacks can compromise the confidentiality and integrity of user data by stealing session tokens, manipulating page content, or performing actions on behalf of the user. The vulnerability is remotely exploitable over the network without requiring privileges but does require user interaction, such as clicking a crafted link or visiting a malicious webpage. The CVSS v3.1 base score is 5.4 (medium), reflecting a network attack vector, low attack complexity, no privileges required, but user interaction needed, and limited impact on confidentiality and integrity with no impact on availability. There are no known exploits in the wild at the time of publication, but the risk remains significant due to the widespread use of CSP as a defense mechanism. The lack of a patch link suggests that a fix may not yet be publicly available, emphasizing the need for configuration review and mitigation.

For European organizations, this vulnerability poses a moderate risk, especially for those deploying HCL AION 2.0 in web-facing applications or internal portals. Exploitation could lead to unauthorized script execution, enabling attackers to perform cross-site scripting attacks that compromise user sessions, steal sensitive information, or manipulate application behavior. This can result in data breaches, loss of user trust, and potential regulatory non-compliance under GDPR if personal data is exposed. The impact is heightened for sectors with critical infrastructure or sensitive data, such as finance, healthcare, and government services. Since exploitation requires user interaction, phishing or social engineering campaigns could be used to trigger attacks. The absence of known exploits reduces immediate risk but does not eliminate the threat, as attackers may develop exploits once the vulnerability is widely known. The medium severity indicates that while the threat is not critical, it warrants timely attention to prevent escalation or chaining with other vulnerabilities.

European organizations should immediately audit and review their Content-Security-Policy headers in HCL AION 2.0 deployments to ensure strict script allowlist enforcement. Specific steps include: 1) Implement a restrictive CSP that only allows scripts from trusted domains and disallows inline scripts unless absolutely necessary, using nonce or hash-based whitelisting. 2) Disable or limit the use of 'unsafe-inline' and 'unsafe-eval' directives in CSP. 3) Conduct thorough testing of CSP policies to verify that unauthorized scripts are blocked effectively. 4) Educate users about phishing risks to reduce the likelihood of user interaction exploitation. 5) Monitor web application logs for suspicious script execution or injection attempts. 6) Stay updated with HCL security advisories for patches or updates addressing this vulnerability and apply them promptly once available. 7) Consider deploying additional web application firewalls (WAF) with rules to detect and block XSS attempts. 8) Employ Content Security Policy reporting features to detect violations and refine policies accordingly. These targeted actions go beyond generic advice by focusing on CSP configuration hardening and proactive monitoring tailored to this vulnerability.