CVE-2020-21431 Path traversal in n/a

Medium 6.5 Published Updated

Attackers can read and write arbitrary files via the template editor, potentially compromising the CMS integrity and data.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-21431?

CVE-2020-21431 is a medium-severity path traversal vulnerability in n/a, published on 4 Oct 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

HongCMS v3.0 contains an arbitrary file read and write vulnerability in the component /admin/index.php/template/edit.

Which versions are affected by CVE-2020-21431?

It affects 1 product.

Products include Hongcms Project Hongcms.

How do I fix CVE-2020-21431?

No fix has been published for CVE-2020-21431 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-2020-21431 being exploited?

There is no known exploitation of CVE-2020-21431 in the wild and no public exploit code.

Sources

Also known as GHSA-hp63-x8c8-jq88.

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