What is CVE-2026-16942?

CVE-2026-16942 is a medium-severity vulnerability in Wp Custom HTML Page, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-05.

How severe is CVE-2026-16942?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Wp Custom HTML Page

CVE-2026-16942

The WP Custom HTML Page WordPress plugin through 0.6.2 does not sanitise HTML stored through one of its custom page handlers, nor restrict it to users allowed to post unfiltered HTML, allowing users with the Author role to store JavaScript that is served unescaped at a public URL and executes for any visitor, including administrators.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (2.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Unknown Wp Custom Html Page — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16942?: CVE-2026-16942 is a medium-severity vulnerability in Wp Custom HTML Page, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-05.
How severe is CVE-2026-16942?: Medium severity. CVSS v3 base score is 5.4 out of 10.