PT-2023-11588 · Unknown · Nucleus Cms

Gsuhy-Lo · Published 2023-06-20 · Updated 2024-12-10 · CVE-2020-21474

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions NucleusCMS version 3.71

Description The issue allows a remote attacker to execute arbitrary code. This is achieved via the "https://example.com/nucleus/plugins/skinfiles/?dir=rsd" API endpoint, where the dir parameter is set to rsd.

Recommendations For NucleusCMS version 3.71, consider disabling the file upload functionality until a patch is available. Restrict access to the /nucleus/plugins/skinfiles/ API endpoint to minimize the risk of exploitation. Avoid using the dir parameter in the affected API endpoint until the issue is resolved.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2020-21474

Affected Products

Nucleus Cms

References · 5

• 🔥 https://github.com/NucleusCMS/NucleusCMS/issues/95 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-21474 · Security Note
• https://osv.dev/vulnerability/CVE-2020-21474 · Vendor Advisory
• https://t.me/cvenotify/103715 · Telegram Post
• https://t.me/cvenotify/52683 · Telegram Post