# CVE-2021-38314

## Summary

- **CVE ID:** CVE-2021-38314
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-200, CWE-760
- **Published:** Sep 2, 2021
- **Last Modified:** Mar 13, 2026

## Description

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`.

## Affected Products

- Redux.io — Gutenberg Template Library & Redux Framework (4.2.11)

## References

- [CNA](https://www.wordfence.com/blog/2021/09/over-1-million-sites-affected-by-redux-framework-vulnerabilities/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 91.62%
- **EPSS Percentile:** 99.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._