What is CVE-2025-66736?

CVE-2025-66736 is a high-severity vulnerability in Youlai Youlai-Boot, classified under Improper Access Control. CVSS score: 7.1/10. Published 2025-12-22.

How severe is CVE-2025-66736?

High severity. CVSS v3 base score is 7.1 out of 10.

Auth bypass in Youlai Youlai-Boot

CVE-2025-66736

youlai-boot V2.21.1 is vulnerable to Incorrect Access Control. The importUsers function in SysUserController.java does not perform a permission check on the current user's identity, which may allow regular users to import user data into the database, resulting in an authorization bypass vulnerability.

EPSS: 0.003 (20.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Youlai Youlai-boot — versions 2.21.1
N/a — versions n/a

Weakness classification (CWE)

References

cve@mitre.org (Patch)
cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2025-66736?: CVE-2025-66736 is a high-severity vulnerability in Youlai Youlai-Boot, classified under Improper Access Control. CVSS score: 7.1/10. Published 2025-12-22.
How severe is CVE-2025-66736?: High severity. CVSS v3 base score is 7.1 out of 10.