CVE-2025-57923 WordPress UK Address Postcode Validation plugin <= 3.9.2 - Sensitive Data Exposure vulnerability
An attacker can retrieve embedded sensitive data from the UK Address Postcode Validation plugin, exposing confidential information to unauthorized users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-57923?
CVE-2025-57923 is a medium-severity vulnerability in Ideal Postcodes UK Address Postcode Validation, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-201
Which versions are affected by CVE-2025-57923?
How do I fix CVE-2025-57923?
No fix has been published for CVE-2025-57923 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-57923 being exploited?
There is no known exploitation of CVE-2025-57923 in the wild and no public exploit code.
Sources
Also known as GHSA-5523-p533-prfw.