CVE-2021-45807 Command injection in n/a

Critical 9.8 Published 13 Jan 2022 Updated 9 Jul 2026

Attackers can execute arbitrary commands via the addon upload and install feature in JPress, requiring immediate patching.

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-2021-45807?

CVE-2021-45807 is a critical command injection vulnerability in n/a, published on 13 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

jpress v4.2.0 is vulnerable to command execution via io.jpress.web.admin._AddonController::doUploadAndInstall.

Which versions are affected by CVE-2021-45807?

It affects 1 product.

Products include Jpress Jpress.

How do I fix CVE-2021-45807?

No fix has been published for CVE-2021-45807 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-45807 being exploited?

There is no known exploitation of CVE-2021-45807 in the wild and no public exploit code.

Sources

Also known as GHSA-2522-v35m-2r22.