CVE-2023-34015: WordPress Advanced Flat rate shipping Woocommerce Plugin <= 1.6.4.4 is vulnerable to Cross Site Request Forgery (CSRF)

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-07-11 · updated 2026-06-17
Weakness: CWE-352

Description

Cross-Site Request Forgery (CSRF) vulnerability in PI Websolution Conditional shipping & Advanced Flat rate shipping rates / Flexible shipping for WooCommerce shipping plugin <= 1.6.4.4 versions.

Affected products

PI Websolution Conditional shipping & Advanced Flat rate shipping rates / Flexible shipping for WooCommerce shipping: before 1.6.4.6 — fixed in 1.6.4.6

How to fix

Upgrade to a fixed version: PI Websolution Conditional shipping & Advanced Flat rate shipping rates / Flexible shipping for WooCommerce shipping 1.6.4.6. Check the vendor advisory for mitigations.

References

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