What is CVE-2023-6988?

CVE-2023-6988 is a medium-severity vulnerability in Extendthemes Colibri Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-01-11.

How severe is CVE-2023-6988?

Medium severity. CVSS v3 base score is 6.4 out of 10.

Is CVE-2023-6988 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Extendthemes Colibri Page Builder

CVE-2023-6988

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (30.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Extendthemes Colibri Page Builder — versions 0
Extendthemes Colibri_page_builder

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Broken Link)
security@wordfence.com (Issue Tracking)

Frequently asked questions

What is CVE-2023-6988?: CVE-2023-6988 is a medium-severity vulnerability in Extendthemes Colibri Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2024-01-11.
How severe is CVE-2023-6988?: Medium severity. CVSS v3 base score is 6.4 out of 10.
Is CVE-2023-6988 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.