CVE-2021-27112 Server-side request forgery in n/a

Critical 9.8 Published 15 Apr 2021 Updated 3 Aug 2024

Attackers can achieve remote code execution in LightCMS by exploiting a server-side request forgery vulnerability during external image downloads.

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

What is CVE-2021-27112?

CVE-2021-27112 is a critical server-side request forgery vulnerability in n/a, published on 15 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

LightCMS v1.3.5 contains a remote code execution vulnerability in /app/Http/Controllers/Admin/NEditorController.php during the downloading of external images.

Which versions are affected by CVE-2021-27112?

It affects 1 product.

Products include Lightcms Project Lightcms.

How do I fix CVE-2021-27112?

No fix has been published for CVE-2021-27112 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2021-27112 being exploited?

There is no known exploitation of CVE-2021-27112 in the wild and no public exploit code.

Sources

Also known as GHSA-4v47-26g5-4434.