livecomposer Live Composer – Free WordPress Website Builder

Published Atomicorp research notes for CVEs affecting livecomposer Live Composer – Free WordPress Website Builder where WAF protections were observed during testing or engineering review.

These notes are not intended to represent the full set of vulnerabilities mitigated by Atomicorp products and should not be interpreted as a coverage matrix, certification list, or census of protected CVEs.

Atomicorp WAF protections are primarily designed around attack techniques and exploit behaviors rather than individual vulnerability identifiers. A published research note documents a positive research finding related to that CVE. If a CVE is absent from these notes, no conclusion should be drawn about protection status.

CVEVulnerabilityCVSSSeverityRules Observed
CVE-2026-13203Live Composer <= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'custom_id' Shortcode Attribute6.4 (v3.1)Medium333140 , 340087 , 340095 , 340099 , 340147 , 341099 , 341256 , 341266 , 342259 , 346755
CVE-2026-16786Live Composer <= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via dslc_module_testimonials_output S6.4 (v3.1)Medium333140 , 333141 , 340095 , 340147 , 340148 , 341256 , 342259 , 346755
CVE-2026-16788Live Composer <= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via dslc_module_projects_output Short6.4 (v3.1)Medium333140 , 333141 , 340095 , 342259