Stored Cross-Site Scripting in MailPoet WordPress Plugin
CVE-2024-12743

4.8MEDIUM

Key Information:

Vendor

WordPress
Status
Mailpoet
Vendor
CVE Published:
15 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2024-12743?

The MailPoet WordPress plugin versions prior to 5.5.2 fail to properly sanitize and escape certain settings. This oversight permits high privilege users, such as administrators, to execute Stored Cross-Site Scripting (XSS) attacks, even in setups where the unfiltered_html capability is disabled, such as in multisite environments. This vulnerability poses significant security risks, as attackers could exploit this flaw to inject malicious scripts, potentially compromising user data and site integrity.

Affected Version(s)

MailPoet 0 < 5.5.2

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-2024-12743 - Proof of Concept

References

https://wpscan.com/vulnerability/7945f52d-364d-438c-84f2-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dmitrii Ingatyev
WPScan
.