CVE-2026-16787

medium

Description

The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'dslc_custom_field' Shortcode in all versions up to, and including, 2.1.19 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/91febd9e-0b46-4f67-9ba0-97c01bf1c699?source=cve

https://plugins.trac.wordpress.org/changeset?reponame=&old=3662813%40live-composer-page-builder&new=3662813%40live-composer-page-builder

https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/includes/shortcodes.php#L89

https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/includes/shortcodes.php#L88

https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/includes/shortcodes.php#L84

Details

Source: Mitre, NVD

Published: 2026-09-01

Updated: 2026-09-01

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00193