The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress registered several AJAX actions available to unauthenticated users in the `includes` function in `redux-core/class-redux-core.php` that were unique to a given site but deterministic and predictable given that they were based on an md5 hash of the site URL with a known salt value of '-redux' and an md5 hash of the previous hash with a known salt value of '-support'. These AJAX actions could be used to retrieve a list of active plugins and their versions, the site's PHP version, and an unsalted md5 hash of site’s `AUTH_KEY` concatenated with the `SECURE_AUTH_KEY`.
CVE-2021-38314 is a medium severity with CVSS 5.3 Vulnerability issue affecting the Plugin Redux Framework. It affects Versions up to 4.2.11 and is fixed in 4.2.13.
Use the related hub and response guides to connect this CVE-2021-38314 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-2021-38314 is tracked for the Plugin Redux Framework as medium severity with CVSS 5.3. The affected range is Versions up to 4.2.11. Update Redux Framework to 4.2.13 or newer where that version is compatible with the site.
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.
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 4.2.11.
Confirm Redux Framework is updated to 4.2.13 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 |
redux-framework
View on wordpress.org
|
| CVE | CVE-2021-38314 |
| Patched Versions |
4.2.13
|
| Affected Versions |
Versions up to 4.2.11
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Redux Framework 4.4.12 - 4.4.17 - Unauthenticated JSON File Upload to Stored Cross-Site Scripting
Gutenberg Template Library & Redux Framework <= 4.2.1 - Incorrect Authorization Leading to Arbitrary Plugin Installation and Post Deletion
Redux Framework <= 4.5.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via data Parameter
Gutenberg Template and Pattern Library & Redux Framework <= 4.1.20 - Cross-Site Request Forgery
Gutenberg Template Library & Redux Framework <= 4.1.23 - Cross-Site Request Forgery
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