TI-2020-13965 Aliases CVE-2020-21005 GHSA-w6gx-rprc-p2qj

WellCMS 2.0 beta3 is vulnerable to File Upload.

LOW 30CWE-434Published 2021-06-03 · Updated 2024-08-04

Key facts

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

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

Summary

WellCMS 2.0 beta3 is vulnerable to File Upload. A user can log in to the CMS background and upload a picture. Because the upload file type is controllable, the user can modify the upload file type to get webshell.

Why it matters now

EPSS 0.0081 57th 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:wellcms:wellcms:2.0:beta3::::::	2.0 beta3	Vulnerable	Wellcms

cpe:2.3:a:wellcms:wellcms:2.0:beta3:*:*:*:*:*:* Versions 2.0 beta3 Vulnerable ·Wellcms

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-21005
2026-10-03 Alias added: GHSA-w6gx-rprc-p2qj

References

Exploit 1

https://github.com/Computer2200/-/issues/4

Advisory 1

http://www.wellcms.cn/read-27.html&&

TI-2022-16888 Wellcms 2.2.0 is vulnerable to Cross Site Request Forgery (CSRF). CVSS 3.1HIGH 8.8

Sources

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