CVE-2021-3172 Denial of service in n/a

High 8.1 Published 17 Feb 2023 Updated 19 Mar 2025

Authenticated attackers can cause a Distributed Denial of Service in Php-Fusion via the Polling feature.

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-2021-3172?

CVE-2021-3172 is a high-severity denial of service vulnerability in n/a, published on 17 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue in Php-Fusion v9.03.90 fixed in v9.10.00 allows authenticated attackers to cause a Distributed Denial of Service via the Polling feature.

Weakness: CWE-732

Which versions are affected by CVE-2021-3172?

It affects 1 product.

Products include Php-Fusion Php-Fusion.

How do I fix CVE-2021-3172?

No fix has been published for CVE-2021-3172 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-3172 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-3172 exists.

Sources

Also known as GHSA-c8m3-g5j7-r8pw.