What is CVE-2025-11747?

CVE-2025-11747 is a medium-severity vulnerability in Extendthemes Colibri Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-12-19.

How severe is CVE-2025-11747?

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

XSS in Extendthemes Colibri Page Builder

CVE-2025-11747

The Colibri Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the colibri_blog_posts shortcode in all versions up to, and including, 1.0.345 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (20.5th 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

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-11747?: CVE-2025-11747 is a medium-severity vulnerability in Extendthemes Colibri Page Builder, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-12-19.
How severe is CVE-2025-11747?: Medium severity. CVSS v3 base score is 6.4 out of 10.