CVE-2020-21005 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Wellcms	Wellcms	2.0

Related Weaknesses (CWE)

CWE-434

References

http://www.wellcms.cn/read-27.html&&Vendor Advisory
https://github.com/Computer2200/-/issues/4ExploitThird Party Advisory
http://www.wellcms.cn/read-27.html&&Vendor Advisory
https://github.com/Computer2200/-/issues/4ExploitThird Party Advisory

FAQ

What is CVE-2020-21005?

CVE-2020-21005 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...

How severe is CVE-2020-21005?

CVE-2020-21005 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-21005?

Check the references section above for vendor advisories and patch information. Affected products include: Wellcms Wellcms.