BetterDocs Pro <= 3.7.0 - Unauthenticated SQL Injection via Encyclopedia 'limit' Parameter
The BetterDocs Pro plugin for WordPress is vulnerable to SQL Injection via the `get_current_letter_docs` and `docs_sort_by_letter` AJAX actions in all versions up to, and including, 3.7.0. This is due to the `limit` POST parameter being interpolated directly into a SQL query string before being passed to `$wpdb->prepare()`, which only parameterizes other variables. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The Encyclopedia feature must be enabled in BetterDocs Pro settings for the vulnerability to be exploitable.
CVE-2026-4348 is a high severity with CVSS 7.5 SQL Injection issue affecting the Plugin BetterDocs Pro. It affects Versions up to 3.7.0 and is fixed in 3.7.1.
Review the full BetterDocs Pro vulnerability cluster
Use the related hub and response guides to connect this CVE-2026-4348 report with patch validation, scanner checks, and site hardening work.
Open the grouped hub for related CVEs, affected ranges, severity mix, and patch coverage.
Check access, XML-RPC exposure, backup readiness, and monitoring after patching.
Use containment, evidence capture, remediation, and validation steps when exploit risk is high.
CVE-2026-4348 is tracked for the Plugin BetterDocs Pro as high severity with CVSS 7.5. The affected range is Versions up to 3.7.0. Update BetterDocs Pro to 3.7.1 or newer where that version is compatible with the site.
Why this report is useful for search and triage
Search engines and operators need more than a title. This page exposes the identifier, affected range, patch evidence, and source coverage that make the vulnerability actionable.
This report has a CVE identifier, which makes it suitable for focused search and vulnerability triage workflows.
Affected version data gives operators a concrete comparison point against installed WordPress software.
A fixed version is present, so the page can answer update and remediation intent directly.
External references are available for source validation, advisory review, and incident notes.
How to validate this finding
Use these checks when converting this record into a patch ticket, incident note, or risk acceptance decision.
Inventory the installed Plugin package and compare its version with Versions up to 3.7.0.
Confirm BetterDocs Pro is updated to 3.7.1 or newer.
Review references and CVSS vector details for exploitability, authentication requirements, and exposure path.
After patching, re-run vulnerability monitoring and keep the related plugin or theme hub under review for follow-up CVEs.
| Software Type | Plugin |
|---|---|
| Software Slug |
betterdocs-pro
View on wordpress.org
|
| CVE | CVE-2026-4348 |
| Patched Versions |
3.7.1
|
| Affected Versions |
Versions up to 3.7.0
|
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