CVE-2023-6988 - CVE House
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Status published Medium CVE-2023-6988

Colibri Page Builder <= 1.0.239 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

Vulnerability Description

The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's extend_builder_render_js shortcode in all versions up to, and including, 1.0.239 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Hung -mov Nguyen

Affected Vendor

extendthemes

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Affected Software

Colibri Page Builder
Vulnerable Versions:
0

Timeline

Official Publish: January 11th, 2024
Last Modified: April 8th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)