Stored XSS Vulnerability in Email Address Encoder Plugin by WordPress
CVE-2026-5305

8.8HIGH

Key Information:

Vendor

WordPress
Status
Email Address Encoder
Email-encoder-premium
Vendor
CVE Published:
25 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5305?

The Email Address Encoder WordPress plugin versions prior to 1.0.25 and the email-encoder-premium WordPress plugin before version 0.3.12 exhibit security flaws in their email replacement functionality. This imperfection allows unauthenticated attackers to execute Stored Cross-Site Scripting (XSS) attacks, potentially compromising user data and site integrity by injecting malicious scripts that execute in the context of users who visit the affected web pages.

Affected Version(s)

Email Address Encoder 0 < 1.0.25

email-encoder-premium 0 < 0.3.12

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-5305 - Proof of Concept

References

https://wpscan.com/vulnerability/bf59610b-98ba-4c05-b2fc-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matthew Rollings
WPScan
.