CVE-2021-38314: The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress registered several AJAX action

Q: How do I fix CVE-2021-38314?

gutenberg template library \& redux framework: upgrade to newer than 4.2.11. Exact commands for each OS are on this page.

Q: Is CVE-2021-38314 being exploited?

CVE-2021-38314 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-38314 affect?

CVE-2021-38314 affects gutenberg template library \& redux framework. Severity is medium (CVSS 5.3). 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 s

Q: How urgent is CVE-2021-38314?

Priority 53/100. EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2021-38314 is a medium-severity flaw (CVSS 5.3) affecting gutenberg template library \& redux framework. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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'. Th

Why this priority

EPSS top 2%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	29.0% (top 2%)
CISA exploited list	No
Weakness	CWE-200, CWE-760, CWE-916
Published	2021-09-02
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: redux

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-09-02 17:15 UTCPublished CVE record published
2026-06-17 04:01 UTCUpdated Record last modified

redux gutenberg template library \& redux framework UPGRADE

Affected: <= 4.2.11

Fixed in: newer than 4.2.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gutenberg-template-library--redux-framework || rpm -q gutenberg-template-library--redux-framework || gutenberg-template-library--redux-framework --version

2. UPGRADE to newer than 4.2.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gutenberg-template-library--redux-framework

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gutenberg-template-library--redux-framework

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: WordPress Redux Framework <=4.2.11 - Information Disclosure

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-38314?

gutenberg template library \& redux framework: upgrade to newer than 4.2.11. Exact commands for each OS are on this page.

Is CVE-2021-38314 being exploited?

CVE-2021-38314 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-38314 affect?

CVE-2021-38314 affects gutenberg template library \& redux framework. Severity is medium (CVSS 5.3). 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 s

How urgent is CVE-2021-38314?

Priority 53/100. EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities · PHP vulnerabilities

Related CVEs

CVE-2021-38312 HIGH 7.1 UPGRADE The Gutenberg Template Library & Redux Framework plugin <= 4.2.11 for WordPress used an incorrect authorizatio

References

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