Stored XSS in Email Encoder WordPress Plugin Affects Users
CVE-2026-5776

6.1MEDIUM

Key Information:

Vendor

WordPress
Status
Email Encoder
Vendor
CVE Published:
20 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5776?

The Email Encoder plugin for WordPress, prior to version 2.4.7, is susceptible to Stored Cross-Site Scripting (XSS) vulnerabilities. This flaw occurs due to the inadequate escaping of email addresses that are collected through user input, allowing potential attackers to inject malicious scripts. If exploited, this vulnerability can enable unauthenticated users to execute arbitrary scripts in the context of other users, compromising sensitive data and site integrity. It is crucial to update to the latest version to mitigate this risk.

Affected Version(s)

Email Encoder 0 < 2.4.7

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-2026-5776 - Proof of Concept

References

https://wpscan.com/vulnerability/00c0b9f7-c559-463e-80ae-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matthew Rollings
WPScan
.