CVE-2021-24212 WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE

Q: What is CVE-2021-24212?

CVE-2021-24212 is a critical vulnerability in Unknown WooCommerce Help Scout, published on 5 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2021-24212 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24212 exists.

Q: How do I fix CVE-2021-24212?

No fix has been published for CVE-2021-24212 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 5 Apr 2021 Updated 3 Aug 2024

Unauthenticated attackers can upload arbitrary files to the server, potentially leading to remote code execution on sites using the WooCommerce Help Scout plugin.

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-2021-24212?

CVE-2021-24212 is a critical vulnerability in Unknown WooCommerce Help Scout, published on 5 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WooCommerce Help Scout WordPress plugin before 2.9.1 (https://woocommerce.com/products/woocommerce-help-scout/) allows unauthenticated users to upload any files to the site which by default will end up in wp-content/uploads/hstmp.

Weakness: CWE-434

Which versions are affected by CVE-2021-24212?

It affects 1 product.

Products include Woocommerce Help Scout.

How do I fix CVE-2021-24212?

No fix has been published for CVE-2021-24212 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-24212 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24212 exists.

Public exploit code: 1 Nuclei template.

Sources

Also known as GHSA-grjr-768v-vmjf.