9.8

CVE-2023-28121: automattic woocommerce_payments Improper Authentication

CVSS: 9.8v3.1CriticalModified
Published 12-04-2023Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2023-28121 is a critical (CVSS 9.8) Improper Authentication vulnerability in automattic woocommerce_payments. EPSS estimates a 87.04% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
87.04%
0%100%
Critical · +0.53 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1metasploit

Timeline

  1. 12-04-2023
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

87.04%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

+0.53 pp

From 86.51% on 20-09-2026

20-09-202620-10-2026
EPSS score
87.04%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • MetasploitMetasploitremoteUnverified

    Wordpress Plugin WooCommerce Payments Unauthenticated Admin Creation

    auxiliary/scanner/http/wp_woocommerce_payments_add_user

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Automattic2 products
  • woocommerce_payments≥ 4.8.0, < 4.8.2 | ≥ 5.0.0, < 5.0.4 | ≥ 5.1.0, < 5.1.3 | ≥ 5.2.0, < 5.2.2 | ≥ 5.5.0, < 5.5.2
  • woopayments≥ 5.6.0, < 5.6.2 | 4.9.0 | 5.3.0 | 5.4.0
Wordpress1 product
  • woocommerce-payments≥ 4.8.0, ≤ 5.6.1 (fixed in 5.6.2)

2 vendors · 3 products

References

3 links