TI-2023-06389 Aliases CVE-2023-6988 GHSA-fv4q-v79m-93hj

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

LOW 29CWE-79Published 2024-01-11 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0037 31st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
extendthemes	Colibri Page Builder	up to 1.0.239	—	No fix listed	CNA

Colibri Page Builder Vendorextendthemes Affected up to 1.0.239 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:extendthemes:colibri_page_builder::::::wordpress::*	up to 1.0.239	Vulnerable	extendthemes

cpe:2.3:a:extendthemes:colibri_page_builder:*:*:*:*:*:wordpress:*:* Versions up to 1.0.239 Vulnerable ·extendthemes

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-6988
2026-10-03 Alias added: GHSA-fv4q-v79m-93hj

References

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/300b24af-10a1-45b9-87ec-7c98dc94e76b?source=cve

Other 2

TI-2023-02052 Colibri Page Builder <= 1.0.227 - Authenticated (Administrator+) SQL Injection via post_id CVSS 3.1HIGH 7.2
TI-2025-23283 WordPress Colibri Page Builder plugin <= 1.0.329 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
TI-2024-03122 Cross-site scripting in extendthemes Colibri Page Builder CVSS 3.1MEDIUM 6.4
TI-2023-27738 WordPress Colibri Page Builder Plugin <= 1.0.239 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.5
TI-2024-04679 Colibri Page Builder <= 1.0.276 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVSS 3.1MEDIUM 6.4
TI-2024-04141 Cross-site scripting in extendthemes Colibri Page Builder CVSS 3.1MEDIUM 6.4

See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences