What is CVE-2025-12803?

CVE-2025-12803 is a medium-severity vulnerability in Boldthemes Bold Page Builder, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.4/10. Published 2026-02-07.

How severe is CVE-2025-12803?

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

XSS in Boldthemes Bold Page Builder

CVE-2025-12803

The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin 'bt_bb_tabs' shortcode in all versions up to, and including, 5.5.1 due to insufficient input sanitization and output escaping on user su…

EPSS: 0.000 (2.9th 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

Boldthemes Bold Page Builder — versions 0

Weakness classification (CWE)

CWE-80 — Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References

Frequently asked questions

What is CVE-2025-12803?: CVE-2025-12803 is a medium-severity vulnerability in Boldthemes Bold Page Builder, classified under Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). CVSS score: 6.4/10. Published 2026-02-07.
How severe is CVE-2025-12803?: Medium severity. CVSS v3 base score is 6.4 out of 10.