PT-2021-10572 · Wellcms · Wellcms

Published 2021-06-03 · Updated 2021-06-11 · CVE-2020-21005

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: WellCMS version 2.0 beta3

Description: The issue allows a user to upload a file by logging into the CMS background and modifying the upload file type, potentially leading to webshell access.

Recommendations: For WellCMS version 2.0 beta3, consider restricting file upload capabilities to prevent exploitation until a proper fix is available. As a temporary workaround, restrict access to file upload features in the CMS background to minimize the risk of exploitation.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2020-21005

Affected Products

Wellcms

References · 4

• 🔥❌ https://github.com/Computer2200/-/issues/4 · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2020-21005 · Security Note
• https://osv.dev/vulnerability/CVE-2020-21005 · Vendor Advisory
• http://wellcms.cn/read-27.html&& · Vendor Advisory