What’s Vulnerable › Vulnerabilities
CVE-2026-16788: Live Composer <= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via dslc_module_projects_output Shortcode
- Severity: medium (CVSS 6.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-01 · updated 2026-09-01
- Weakness: CWE-79
Description
The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via dslc_module_projects_output 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. WordPress's shortcode-aware kses handling preserves the serialized shortcode body as a placeholder before content filtering runs, allowing attacker-controlled values such as view_all_link, main_heading_link_title, main_filter_title_all, and button_text to reach render-time sinks entirely unescaped.
Affected products
- livecomposer Live Composer – Free WordPress Website Builder: through 2.1.19
References
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/projects/module.php#L6025
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/projects/module.php#L6278
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/projects/module.php#L6312
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/projects/module.php#L6563
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/projects/module.php#L6743
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3662813%40live-composer-page-builder&new=3662813%40live-composer-page-builder
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a8ae901a-c32a-43d8-b23b-088e695a5823?source=cve
Get alerted when CVE-2026-16788 or the next vulnerability affects your stack