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CVE PROGRAM SOURCE RECORD6.4 Medium

CVE-2026-16778

Live Composer <= 2.1.21 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'dslc_module_downloads_output' Shortcode Content

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Status
Published
Published
Updated
Assigning organization
Wordfence

Description

The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'dslc_module_downloads_output' Shortcode Content in all versions up to, and including, 2.1.21 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. The save-time wp_kses_post check is bypassed because the payload is stored as a serialized string containing no HTML tags for kses to tokenize, and the shortcode callback re-emits attacker-controlled values — including view_all_link (href attribute), main_heading_title (h2 body), button_text (anchor body), and button_inline_svg (anchor body) — without any escaping at render time.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

livecomposer Live Composer – Free WordPress Website Builder

Default version status: unaffected

  • 0 to ≤ 2.1.21affected

References