The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'shortcode_content' parameter of the bt_bb_shortcode shortcode in all versions up to, and including, 5.9.6. This is due to a bypassable security filter (bt_bb_save_pre) that can be circumvented via null byte injection, combined with insufficient output sanitization of base64-decoded content in the bt_bb_raw_content shortcode handler. 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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
boldthemes Bold Page Builder unaffected
Version Status Constraints
0 affected ≤ 5.9.6

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://plugins.trac.wordpress.org/changeset/3668982/bold-page-builder/trunk/content_elements/bt_bb_raw_content/bt_bb_raw_content.php cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/629fee36-1fea-4a4d-acc2-9ba18d0b6487?source=cve cve-icon
History

Wed, 16 Sep 2026 04:45:00 +0000

Type Values Removed Values Added
Description The Bold Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'shortcode_content' parameter of the bt_bb_shortcode shortcode in all versions up to, and including, 5.9.6. This is due to a bypassable security filter (bt_bb_save_pre) that can be circumvented via null byte injection, combined with insufficient output sanitization of base64-decoded content in the bt_bb_raw_content shortcode handler. 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.
Title Bold Page Builder <= 5.9.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'shortcode_content' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-09-16T04:28:01.825Z

Reserved: 2026-04-08T20:44:00.842Z

Link: CVE-2026-5920

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses