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.

Published: 2023-04-12 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-28121 is rated High Risk (74.4/100): CVSS Critical severity, with high exploitation likelihood (EPSS 93.67%, 100th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-28121

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-21 93.46% 93.67% +0.21%
2 2026-03-10 93.35% 93.46% +0.11%
3 2025-12-21 — 93.35% —

Full EPSS history (52 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-28121

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2023-28121

Affected software / configurations for CVE-2023-28121

Vendor Product Version Raw CPE
automattic woocommerce_payments >= 4.8.0, < 4.8.2 cpe:2.3:a:automattic:woocommerce_payments:*:*:*:*:*:wordpress:*:*
automattic woocommerce_payments >= 5.0.0, < 5.0.4 cpe:2.3:a:automattic:woocommerce_payments:*:*:*:*:*:wordpress:*:*
automattic woocommerce_payments >= 5.1.0, < 5.1.3 cpe:2.3:a:automattic:woocommerce_payments:*:*:*:*:*:wordpress:*:*
automattic woocommerce_payments >= 5.2.0, < 5.2.2 cpe:2.3:a:automattic:woocommerce_payments:*:*:*:*:*:wordpress:*:*
automattic woocommerce_payments >= 5.5.0, < 5.5.2 cpe:2.3:a:automattic:woocommerce_payments:*:*:*:*:*:wordpress:*:*
automattic woopayments >= 5.6.0, < 5.6.2 cpe:2.3:a:automattic:woopayments:*:*:*:*:*:wordpress:*:*
automattic woopayments 4.9.0 cpe:2.3:a:automattic:woopayments:4.9.0:*:*:*:*:wordpress:*:*
automattic woopayments 5.3.0 cpe:2.3:a:automattic:woopayments:5.3.0:*:*:*:*:wordpress:*:*
automattic woopayments 5.4.0 cpe:2.3:a:automattic:woopayments:5.4.0:*:*:*:*:wordpress:*:*

References for CVE-2023-28121

cvelogic Threat Intelligence