CVE-2025-57923: Ideal Postcodes Uk Address Postcode Validation

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Insertion of Sensitive Information Into Sent Data vulnerability in Ideal Postcodes UK Address Postcode Validation uk-address-postcode-validation allows Retrieve Embedded Sensitive Data.This issue affects UK Address Postcode Validation: from n/a through <= 3.9.2.

Affected products

• Ideal Postcodes Uk Address Postcode Validation: up to and including 3.9.2

Published 2025-09-22. Last modified 2026-06-17.