TI-2021-14810 Aliases CVE-2021-36581 GHSA-xhhh-8cg4-rhc7

Kooboo CMS 2.1.1.0 is vulnerable to Insecure file upload.

MEDIUM 45CWE-434Published 2021-09-14 · Updated 2026-07-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.

Summary

Kooboo CMS 2.1.1.0 is vulnerable to Insecure file upload. It is possible to upload any file extension to the server. The server does not verify the extension of the file and the tester was able to upload an aspx to the server.

Why it matters now

EPSS 0.0143 73rd percentileScored 2026-11-07

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:kooboo:kooboo_cms:2.1.1.0:::::::*	2.1.1.0	Vulnerable	Kooboo

cpe:2.3:a:kooboo:kooboo_cms:2.1.1.0:*:*:*:*:*:*:* Versions 2.1.1.0 Vulnerable ·Kooboo

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-36581
2026-10-03 Alias added: GHSA-xhhh-8cg4-rhc7

References

Advisory 1

https://github.com/l00neyhacker/CVE-2021-36581/

TI-2021-14811 In Kooboo CMS 2.1.1.0, it is possible to upload a remote shell (e.g., aspx) to the server… CVSS 3.1CRITICAL 9.8

Sources

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