WooCommerce Payments 4.8.0 — 5.6.1 Authentication Bypass and Privilege Escalation
CVE-2023-28121Published · Updated Action summary
Affected: 4.8.0 – 5.6.1Update to 5.6.2 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WooPayments: Integrated WooCommerce Payments woocommerce-payments
- Affected4.8.0 – 5.6.1
- Patched in5.6.2
Update to 5.6.2 or newer.
You are affected if you run 4.8.0 – 5.6.1. Version 5.6.2 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WooPayments: Integrated WooCommerce Payments.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 5.6.2, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WooPayments: Integrated WooCommerce Payments to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Michael Mazzolini.
The WooCommerce Payments plugin is vulnerable to authentication bypass via the determine_current_user_for_platform_checkout function. This allows unauthenticated attackers to impersonate arbitrary users and perform some actions as the impersonated user, which can lead to site takeover.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WooPayments: Integrated WooCommerce Payments
All 7| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.5 | Missing Authorization to Unauthenticated Plugin Settings Update via save_upe_appearance_ajax ≤10.5.1Update to 10.6.0 | CVE-2026-1710 | |
| Medium5.3 | Unauthenticated Insecure Direct Object Reference ≤6.6.2Update to 6.7.0 | CVE-2023-51503 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤6.4.2Update to 6.5.0 | CVE-2023-49828 | |
| Medium6.6 | Authenticated (Shop manager+) SQL Injection via currency parameters ≤5.9.0Update to 5.9.1 | CVE-2023-35915 | |
| Medium6.5 | Missing Authorization via redirect_pay_for_order_to_update_payment_method ≤5.9.0Update to 5.9.1 | CVE-2023-35916 |
- Medium6.5Missing Authorization to Unauthenticated Plugin Settings Update via save_upe_appearance_ajax
≤10.5.1Update to 10.6.0
- Medium5.3Unauthenticated Insecure Direct Object Reference
≤6.6.2Update to 6.7.0
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤6.4.2Update to 6.5.0
- Medium6.6Authenticated (Shop manager+) SQL Injection via currency parameters
≤5.9.0Update to 5.9.1
- Medium6.5Missing Authorization via redirect_pay_for_order_to_update_payment_method
≤5.9.0Update to 5.9.1
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.