CVE-2026-5305 Email Address Encoder (Free < 1.0.25, Premium < 0.3.12) - Unauthenticated Stored XSS

High 8.8 Published Updated

Unauthenticated attackers can inject malicious scripts via email replacement in the Email Address Encoder WordPress plugin, potentially compromising user sessions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-5305?

CVE-2026-5305 is a high-severity cross-site scripting vulnerability in Unknown Email Address Encoder, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Email Address Encoder WordPress plugin before 1.0.25, email-encoder-premium WordPress plugin before 0.3.12 does not properly handle email replacement, which could allow unauthenticated users to perform Stored XSS attacks

Which versions are affected by CVE-2026-5305?

How do I fix CVE-2026-5305?

No fix has been published for CVE-2026-5305 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-5305 being exploited?

There is no known exploitation of CVE-2026-5305 in the wild and no public exploit code.

Sources

Also known as GHSA-gcp6-956h-2589.

Is CVE-2026-5305 in your software?

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