CVE-2021-38314

MEDIUM NUCLEI

Gutenberg Template Library & Redux Framework <= 4.2.11 - Sensitive Information Exposure

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 7 public exploits for CVE-2021-38314. PoCs published by orangmuda, phrantom, akhilkoradiya. A Nuclei detection template is also available.

AI-analyzed exploit summary This PoC exploits an unauthenticated sensitive information disclosure vulnerability in Redux Framework by chaining MD5-based key generation and remote code verification to leak sensitive data via WordPress admin-ajax.php.

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`.

Exploits (7)

nomisec WORKING POC 7 stars
by orangmuda · poc
https://github.com/orangmuda/CVE-2021-38314

This PoC exploits an unauthenticated sensitive information disclosure vulnerability in Redux Framework by chaining MD5-based key generation and remote code verification to leak sensitive data via WordPress admin-ajax.php.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Redux Framework (WordPress plugin)
No auth needed
Prerequisites: WordPress site with vulnerable Redux Framework plugin
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 6 stars
by phrantom · poc
https://github.com/phrantom/cve-2021-38314

The exploit leverages predictable AJAX action names derived from MD5 hashes of the site URL to retrieve sensitive information, including active plugins, PHP version, and an unsalted MD5 hash of WordPress authentication keys. The PoC automates the process by generating the required hashes and querying the vulnerable endpoints.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress
No auth needed
Prerequisites: Target site URL · Vulnerable plugin version installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 4 stars
by akhilkoradiya · poc
https://github.com/akhilkoradiya/CVE-2021-38314

The repository contains a functional Python exploit for CVE-2021-38314, which targets the Gutenberg Template Library & Redux Framework plugin for WordPress. The exploit retrieves sensitive information by leveraging predictable AJAX actions based on MD5 hashes of the site URL.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress
No auth needed
Prerequisites: Target URL with vulnerable plugin installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 2 stars
by twseptian · poc
https://github.com/twseptian/cve-2021-38314

This repository contains a functional PHP exploit for CVE-2021-38314, which leverages predictable AJAX actions in the Redux Framework plugin to disclose sensitive information such as active plugins, PHP version, and unsalted hashes of WordPress authentication keys.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress
No auth needed
Prerequisites: Target WordPress site with vulnerable Redux Framework plugin installed
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by 0xGabe · poc
https://github.com/0xGabe/CVE-2021-38314

The repository contains a functional Python script that exploits CVE-2021-38314, an unauthenticated AJAX action vulnerability in the Gutenberg Template Library & Redux Framework plugin for WordPress. The exploit generates predictable AJAX action keys using MD5 hashing and checks for vulnerability by sending crafted requests to the target.

Classification
Working Poc 95%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress
No auth needed
Prerequisites: Target must have the vulnerable plugin installed and accessible
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by c0ff33b34n · poc
https://github.com/c0ff33b34n/CVE-2021-38314

The exploit leverages predictable AJAX action names derived from MD5 hashes of the target URL to retrieve sensitive information, including active plugins, PHP version, and unsalted MD5 hashes of WordPress authentication keys. It automates the process of generating the required hashes and querying the vulnerable endpoints.

Classification
Working Poc 95%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: WordPress Gutenberg Template Library & Redux Framework plugin <= 4.2.11
No auth needed
Prerequisites: Target URL · Access to the WordPress admin-ajax.php endpoint
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WORKING POC 1 stars
by shubhayu-64 · poc
https://github.com/shubhayu-64/CVE-2021-38314

This PoC exploits an unauthenticated sensitive information disclosure vulnerability in Redux Framework by generating a predictable hash and fetching sensitive data via an AJAX endpoint. The script automates the process of retrieving the disclosure code from Redux's verification server.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Redux Framework (WordPress plugin)
No auth needed
Prerequisites: Target must have Redux Framework installed and vulnerable
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Nuclei Templates (1)

WordPress Redux Framework <=4.2.11 - Information Disclosure
MEDIUMby meme-lord

References (1)

Core 1

Scores

CVSS v3 5.3
EPSS 0.2756
EPSS Percentile 97.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-200 CWE-916 CWE-760
Status published
Products (1)
redux/gutenberg_template_library_\&_redux_framework < 4.2.11
Published Sep 02, 2021
Tracked Since Feb 18, 2026