Improper HTML Sanitization in WP Custom HTML Page Plugin from WordPress
CVE-2026-16942

Currently unrated

Key Information:

Vendor

WordPress
Status
WP Custom Html Page
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16942?

The WP Custom HTML Page plugin up to version 0.6.2 fails to properly sanitize HTML inputs through its custom page handlers. This vulnerability allows users with an Author role to store unfiltered JavaScript, leading to potential execution of malicious scripts at public URLs when accessed by any visitor, including site administrators. The lack of access restrictions exacerbates the risk, making it essential for users to apply updates and review their plugin configurations to secure their sites.

Affected Version(s)

WP Custom HTML Page 0 <= 0.6.2

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-2026-16942 - Proof of Concept

References

https://wpscan.com/vulnerability/cda6b957-2013-4707-a5b5-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • đź‘ľ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pablo González Pérez
Francisco José Ramírez Vicente and Iñigo Sánchez Enciso
WPScan
.