CVE-2026-3875
Stored XSS in BetterDocs WordPress Plugin via Feedback Form
Publication date: 2026-04-16
Last updated on: 2026-04-16
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| betterdocs | betterdocs | to 4.3.8 (inc) |
| wpbetterdocs | betterdocs | to 4.3.8 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-79 | The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
The BetterDocs plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the 'betterdocs_feedback_form' shortcode in all versions up to and including 4.3.8.
This vulnerability exists because the plugin does not properly sanitize or escape user-supplied shortcode attributes, allowing authenticated users with contributor level access or higher to inject malicious scripts.
These injected scripts execute whenever any user accesses the affected page.
How can this vulnerability impact me? :
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 other malicious actions.
Because the vulnerability allows script injection that affects other users, it can compromise the security and integrity of the website and its users.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The vulnerability allows authenticated attackers with contributor level access and above to inject arbitrary web scripts via stored cross-site scripting (XSS). This can lead to unauthorized access to user data or session hijacking when users access the injected pages.
Such unauthorized access or data exposure could potentially impact compliance with data protection regulations like GDPR or HIPAA, which require safeguarding personal and sensitive information against unauthorized access or disclosure.
However, the provided information does not explicitly detail the compliance implications or specific regulatory impacts of this vulnerability.