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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (22.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Youlai Youlai-Boot — versions 2.21.1
Weakness classification (CWE)
References
- gitee.com/youlaiorg/youlai-boot/commit/9197065102f92264ded814a9d3e9f2a4ff0da121 (Patch)
- gitee.com/youlaiorg/youlai-boot/issues/ICH8FV (Exploit, Issue Tracking, Vendor Advisory)
- gist.github.com/old6ma/be1d4a5373ee2de901ed4c8d81485046 (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.