CVE-2025-55471 is a vulnerability identified in the getUserFormData function of the youlai-boot software, specifically version 2.21.1. The root cause is incorrect access control, which means the function does not properly verify whether the requesting user has the authorization to access the data of other users. This flaw allows an attacker to bypass intended access restrictions and retrieve sensitive information belonging to other users, potentially including personal details, credentials, or other confidential data stored or processed by the application. The vulnerability does not require user interaction or authentication in some scenarios, increasing its risk profile. Although no exploits have been reported in the wild yet, the vulnerability is publicly disclosed and could be targeted by attackers once exploit code becomes available. The lack of a CVSS score means the severity must be inferred from the nature of the vulnerability: unauthorized access to sensitive data typically impacts confidentiality severely, and the ease of exploitation depends on the application's exposure and access control mechanisms. The vulnerability affects youlai-boot version 2.21.1, but no other versions are specified. No official patches or mitigation links have been published at this time, indicating that organizations must proactively monitor for updates and apply them promptly once released.

The primary impact of CVE-2025-55471 is the unauthorized disclosure of sensitive user information, which can lead to privacy violations, identity theft, and further targeted attacks such as phishing or credential stuffing. For European organizations, this is particularly critical due to stringent data protection regulations like GDPR, which mandate strict controls over personal data and impose heavy penalties for breaches. Exposure of user data can damage organizational reputation, result in regulatory fines, and erode customer trust. Additionally, if the compromised data includes authentication tokens or credentials, attackers could escalate privileges or move laterally within networks, increasing the scope of compromise. The vulnerability's exploitation could disrupt business operations if sensitive data is leaked or manipulated, affecting availability indirectly through incident response and remediation efforts. The lack of known exploits currently reduces immediate risk but does not eliminate the threat, especially as the vulnerability is publicly documented.

1. Monitor official channels and vendor communications for patches or security advisories related to youlai-boot version 2.21.1 and apply updates immediately upon release. 2. Implement strict access control policies at the application and network layers to restrict access to sensitive functions like getUserFormData only to authorized users. 3. Conduct thorough code reviews and penetration testing focusing on access control mechanisms within youlai-boot deployments to identify and remediate similar flaws. 4. Employ logging and monitoring solutions to detect anomalous access patterns or attempts to retrieve data for other users, enabling rapid incident response. 5. Use web application firewalls (WAFs) with custom rules to block suspicious requests targeting the vulnerable function until patches are applied. 6. Educate developers and administrators about secure coding practices and the importance of proper authorization checks. 7. If feasible, isolate critical user data behind additional authentication or encryption layers to reduce exposure in case of access control failures.