CVE-2021-27693 Server-side request forgery in n/a

Critical 9.8 Published 2 Sep 2022 Updated 3 Aug 2024

An attacker can exploit an SSRF vulnerability in PublicCMS to make arbitrary requests from the server, potentially accessing internal resources.

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-2021-27693?

CVE-2021-27693 is a critical server-side request forgery vulnerability in n/a, published on 2 Sep 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Server-side Request Forgery (SSRF) vulnerability in PublicCMS before 4.0.202011.b via /publiccms/admin/ueditor when the action is catchimage.

Weakness: CWE-918

Which versions are affected by CVE-2021-27693?

It affects 1 product.

Products include Publiccms Publiccms.

How do I fix CVE-2021-27693?

No fix has been published for CVE-2021-27693 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-2021-27693 being exploited?

There is no known exploitation of CVE-2021-27693 in the wild and no public exploit code.

Sources

Also known as GHSA-vq23-39c6-74mp.