What is CVE-2026-15234?

CVE-2026-15234 is a medium-severity vulnerability in Codeless Page Builder, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-01.

How severe is CVE-2026-15234?

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

XSS in Codeless Page Builder

CVE-2026-15234

The Codeless Page Builder WordPress plugin through 1.1.4 does not sanitize or validate a shortcode attribute before using it as an HTML tag name when rendering content, allowing users with contributor-level access and above to inject arbitrary HTML and JavaScript that executes in the session of any higher-privileged user (such as an administrator) who views the content.

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 Codeless Page Builder — 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-2026-15234?: CVE-2026-15234 is a medium-severity vulnerability in Codeless Page Builder, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-08-01.
How severe is CVE-2026-15234?: Medium severity. CVSS v3 base score is 5.4 out of 10.