CVE-2021-25082 Popup Builder < 4.0.7 - LFI to RCE

High 8.8 Published Updated

An attacker can exploit a Local File Inclusion vulnerability in the Popup Builder plugin to achieve Remote Code Execution via PHAR wrappers.

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-2021-25082?

CVE-2021-25082 is a high-severity path traversal vulnerability in Unknown Popup Builder – Create highly converting, mobile friendly marketing popups., published on 21 Feb 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The Popup Builder WordPress plugin before 4.0.7 does not validate and sanitise the sgpb_type parameter before using it in a require statement, leading to a Local File Inclusion issue. Furthermore, since the beginning of the string can be controlled, the issue can lead to RCE vulnerability via wrappers such as PHAR

Weakness: CWE-22

Which versions are affected by CVE-2021-25082?

It affects 1 product.

Products include Sygnoos Popup Builder.

How do I fix CVE-2021-25082?

No fix has been published for CVE-2021-25082 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-2021-25082 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-25082 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-rgh6-hx6g-h7q7.

Is CVE-2021-25082 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free