CVE-2021-39497 Server-side request forgery in n/a

Critical 9.8 Published 7 Sep 2021 Updated 4 Aug 2024

Attackers can trigger blind Server-Side Request Forgery in EyouCMS by injecting URLs into the saveRemote function due to lack of input sanitization.

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-2021-39497?

CVE-2021-39497 is a critical server-side request forgery vulnerability in Eyoucms Eyoucms, published on 7 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

eyoucms 1.5.4 lacks sanitization of input data, allowing an attacker to inject a url to trigger blind SSRF via the saveRemote() function.

Weakness: CWE-918

Which versions are affected by CVE-2021-39497?

It affects 1 product.

Products include Eyoucms Eyoucms.

How do I fix CVE-2021-39497?

No fix has been published for CVE-2021-39497 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-2021-39497 being exploited?

There is no known exploitation of CVE-2021-39497 in the wild and no public exploit code.

All Eyoucms Eyoucms vulnerabilities

Sources

Also known as GHSA-8jgx-w564-2r36.