Stored XSS Vulnerability in Check & Log Email WordPress Plugin
CVE-2026-5306

Currently unrated

Key Information:

Vendor

WordPress
Status
Check & Log Email
Vendor
CVE Published:
28 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-5306?

The Check & Log Email WordPress plugin, prior to version 2.0.13, is susceptible to stored Cross-Site Scripting (XSS) attacks due to improper handling of email replacement. With the email encoder setting enabled, this vulnerability allows unauthenticated attackers to inject malicious scripts that can be executed when emails are viewed. This could lead to harmful outcomes, including data exfiltration and manipulation of website content.

Affected Version(s)

Check & Log Email 0 < 2.0.13

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-2026-5306 - Proof of Concept

References

https://wpscan.com/vulnerability/97908c15-6e7a-4242-8c6f-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Matthew Rollings
WPScan
.