Arbitrary file upload in Woocommerce Help Scout

CVE-2021-24212

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.079 (94.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24212?
CVE-2021-24212 is a critical-severity vulnerability in Woocommerce Help Scout, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-04-05.
How severe is CVE-2021-24212?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-24212 known to be exploited?
4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.