Auth bypass in Lucee
CVE-2021-21307
Lucee Server is a dynamic, Java based (JSR-223), tag and scripting language used for rapid web application development. In Lucee Admin before versions 5.3.7.47, 5.3.6.68 or 5.3.5.96 there is an unauthenticated remote code exploit. This is…
Vulnerability class: Broken Access Control
EPSS: 0.892 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.
Affected products
- Lucee — versions >= 5.3.5.0, < 5.3.5.96, >= 5.3.6.0, < 5.3.6.68, >= 5.3.7.0, < 5.3.7.47
- Lucee Lucee_server
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Product)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (Exploit, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Press/Media Coverage)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-21307?
- CVE-2021-21307 is a high-severity vulnerability in Lucee, classified under Missing Authorization. CVSS score: 8.6/10. Published 2021-02-11.
- How severe is CVE-2021-21307?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2021-21307 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.