CVE-2025-12803
Unknown Unknown - Not Provided
Stored XSS in Bold Page Builder Plugin via bt_bb_tabs Shortcode

Publication date: 2026-02-07

Last updated on: 2026-02-07

Assigner: Wordfence

Description
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 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.
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Meta Information
Published
2026-02-07
Last Modified
2026-02-07
Generated
2026-06-16
AI Q&A
2026-02-07
EPSS Evaluated
2026-06-15
NVD
CVE-2025-12803
EUVD
EUVD-2025-206897
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
bold_page_builder plugin to 5.5.1 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-80 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages.
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Executive Summary

The Bold Page Builder plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its 'bt_bb_tabs' shortcode in all versions up to and including 5.5.1.

This vulnerability arises because the plugin does not properly sanitize or escape user-supplied attributes, allowing attackers with contributor-level access or higher to inject malicious scripts.

These injected scripts are stored and executed whenever any user accesses the affected page.

Impact Analysis

An attacker with contributor-level access or above can exploit this vulnerability to inject arbitrary web scripts into pages.

These scripts execute in the context of users visiting the infected pages, potentially leading to theft of user credentials, session hijacking, or unauthorized actions performed on behalf of users.

The vulnerability has a CVSS v3.1 base score of 6.4, indicating a medium severity with network attack vector, low attack complexity, and no user interaction required.

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