Auth bypass in Automattic Woocommerce Payments

CVE-2023-28121

An issue in WooCommerce Payments plugin for WordPress (versions 5.6.1 and lower) allows an unauthenticated attacker to send requests on behalf of an elevated user, like administrator. This allows a remote, unauthenticated attacker to gain admin access on a site that has the affected version of the plugin activated.

Vulnerability class: Broken Authentication

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.870 (99.7th percentile), scored .

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-28121: rose from 0.865 to 0.870.

EPSS over last 30 days · oldest: 0.865 · newest: 0.870 · change: +0.005

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-28121?
CVE-2023-28121 is a critical-severity vulnerability in Automattic Woocommerce Payments, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-04-12.
How severe is CVE-2023-28121?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-28121 known to be exploited?
19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.