CVE-2020-21862 Path traversal in n/a

High 8.1 Published 6 Jul 2023 Updated 21 Nov 2024

Attackers can delete arbitrary files on the server via a directory traversal vulnerability in the admin backup deletion endpoint.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-21862?

CVE-2020-21862 is a high-severity path traversal vulnerability in n/a, published on 6 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Directory traversal vulnerability in DuxCMS 2.1 allows attackers to delete arbitrary files via /admin/AdminBackup/del.

Weakness: CWE-22

Which versions are affected by CVE-2020-21862?

It affects 1 product.

Products include Duxcms Project Duxcms.

How do I fix CVE-2020-21862?

No fix has been published for CVE-2020-21862 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-21862 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-21862 exists.

Sources

Also known as GHSA-vhjr-xhj8-wrqr.