WPBakery Page Builder for WordPress <= 6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting
The WPBakery plugin for WordPress, in versions 6.4 and below, was designed with a flaw that could give users with contributor and author level roles the ability to inject malicious JavaScript into pages and posts. This flaw also gave these users the ability to edit other users’ posts. The plugin explicitly disabled any default post HTML filtering checks in the saveAjaxFe function using kses_remove_filters();. This meant that any user with access to the WPBakery builder could inject HTML and JavaScript anywhere in a post using the page builder.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | WPBakery Page Builder | <= 6.4 | 6.4.1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
WPBakery Page Builder- Disclosed
- 07.10.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 1fab5d06-ff39-4b7c-808b-bd199c2a3329 - Wordfence Intelligence
Copyright 1999-2026 The MITRE Corporation
Copyright 2012-2026 Defiant Inc.
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Vulnerability history: WPBakery Page Builder
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 18
- First → latest
- 02.2015 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 16
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 1
- 2021: 0
- 2022: 0
- 2023: 1
- 2024: 7
- 2025: 6
- 2026: 2
earlier: 1
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WPBakery Page Builder for WordPress <= 6.4 - Authenticated (Contributor+) Stored Cross-Site Scripting this entry
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