CVE-2026-88828
MediumCVSS 5.4Summary
The Blacklist Manager for WooCommerce WordPress plugin from 1.3.0 to 2.3.1 does not enforce its user blocking on every authentication path. This allows the holder of an account the site owner has blocked to keep authenticating with that account's privileges, without the block being enforced or recorded.
Risk Assessment
Blocked users can still access their accounts, undermining security controls and potentially leading to unauthorized actions. The lack of block recording makes incident detection difficult.
Recommendation
Update the Blacklist Manager for WooCommerce plugin to a version newer than 2.3.1 if a vendor patch is available. Verify that blocks are effectively enforced on all authentication paths.
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Original NVD description (English source)
The Blacklist Manager for WooCommerce WordPress plugin from 1.3.0 to 2.3.1 does not enforce its user blocking on every authentication path, allowing the holder of an account the site owner has blocked to keep authenticating with that account's privileges, without the block being enforced or recorded.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

