6.4
Medium
CVE-2026-15101 The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data' parameter…
Description
The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'data' parameter in all versions up to, and including, 8.7.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses_post sanitization applied during save does not neutralize the payload because the malicious script content is base64-encoded as plain alphanumeric text with no HTML tags to strip; the vc_raw_html shortcode template then decodes and echoes this content unescaped at render time.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| WPBakery Page Builder 8.7 | earliest → 8.7.4 | No fix stated |
Other CVEs of WPBakery Page Builder
The 16 CVEs of WPBakery Page Builder →
CVE-2026-119165
WPBakery Page Builder <= 9.0.1 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Post Author Display Name
6.4
Medium
CVE-2025-10006
The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's…
6.4
Medium
CVE-2025-11160
The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom JS module…
6.4
Medium
CVE-2025-11161
The WPBakery Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the vc_custom_heading…
6.4
Medium