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CVE-2025-22303 WordPress WP Mailster plugin <= 1.8.17.0 - Sensitive Data Exposure vulnerability

Medium 5.3 Published Updated

An attacker can retrieve embedded sensitive data from sent emails in the WP Mailster WordPress plugin.

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-2025-22303?

CVE-2025-22303 is a medium-severity vulnerability in brandtoss WP Mailster, published on 7 Jan 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 brandtoss WP Mailster wp-mailster allows Retrieve Embedded Sensitive Data.This issue affects WP Mailster: from n/a through <= 1.8.17.0.

Weakness: CWE-201

Which versions are affected by CVE-2025-22303?

It affects 1 product.

Products include Wpmailster Wp Mailster.

How do I fix CVE-2025-22303?

No fix has been published for CVE-2025-22303 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-22303 being exploited?

There is no known exploitation of CVE-2025-22303 in the wild and no public exploit code.

Sources

Also known as GHSA-8646-v3mf-m963.

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