TI-2021-17621 Aliases CVE-2021-40639 GHSA-8m3p-xv8v-vgp2

Improper access control in Jfinal CMS 5.1.0 allows attackers to access sensitive…

LOW 35CWE-668Published 2021-09-15 · Updated 2026-07-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure, Security bypass
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-668, CWE-863 and the CVSS impact.

Summary

Improper access control in Jfinal CMS 5.1.0 allows attackers to access sensitive information via /classes/conf/db.properties&config=filemanager.config.js.

Why it matters now

EPSS 0.01198 68th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:jflyfox:jfinal_cms:5.1.0:::::::*	5.1.0	Vulnerable	jflyfox

cpe:2.3:a:jflyfox:jfinal_cms:5.1.0:*:*:*:*:*:*:* Versions 5.1.0 Vulnerable ·jflyfox

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-40639
2026-10-03 Alias added: GHSA-8m3p-xv8v-vgp2

References

Exploit 1

https://github.com/jflyfox/jfinal_cms/issues/27

Advisory 1

https://github.com/jflyfox/jfinal_cms

TI-2023-14235 JFinal CMS v5.1.0 was discovered to contain a remote code execution (RCE) vulnerability via the ActionEnter function. CVSS 3.1CRITICAL 9.8
TI-2022-17345 Final CMS 5.1.0 is vulnerable to SQL Injection. CVSS 3.1CRITICAL 9.8
TI-2022-17348 JFinal CMS 5.1.0 is vulnerable to SQL Injection. CVSS 3.1HIGH 8.8
TI-2022-17346 JFinal CMS 5.1.0 is affected by: SQL Injection. CVSS 3.1HIGH 8.8
TI-2022-17343 JFinal CMS 5.1.0 is vulnerable to SQL Injection via /admin/advicefeedback/list CVSS 3.1HIGH 8.8
TI-2023-17357 jfinal CMS 5.1.0 has an arbitrary file read vulnerability. CVSS 3.1HIGH 7.5

See all 50 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences