CVE-2021-38314

Gutenberg Template Library & Redux Framework <= 4.2.11 Sensitive Information Disclosure

State: Published
Severity: 5.3 Medium
Published: Sep 2, 2021
Updated: May 5, 2025
Reserved: Aug 9, 2021

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`.

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	Wordfence

Weaknesses

CWE-200 Information Exposure
CWE-760 Use of a One-Way Hash with a Predictable Salt

Affected Products

Product	Versions
Gutenberg Template Library & Redux FrameworkRedux.io	4.2.11 through 4.2.11Affected

References

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

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