CVE-2021-24546: The Gutenberg Block Editor Toolkit – EditorsKit WordPress plugin before 1.31.6 does not sanitise and validate

Q: How do I fix CVE-2021-24546?

editorskit: upgrade to 1.31.6. Exact commands for each OS are on this page.

Q: Is CVE-2021-24546 being exploited?

CVE-2021-24546 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-2021-24546 affect?

CVE-2021-24546 affects editorskit. Severity is high (CVSS 8.8). The Gutenberg Block Editor Toolkit – EditorsKit WordPress plugin before 1.31.6 does not sanitise and validate the Conditional Logic of the Custom Visibility settings, allowing users with a role as low contributor to execute Arbitrary PHP co

Q: How urgent is CVE-2021-24546?

Priority 55/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2021-24546 is a high-severity flaw (CVSS 8.8) affecting editorskit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Gutenberg Block Editor Toolkit – EditorsKit WordPress plugin before 1.31.6 does not sanitise and validate the Conditional Logic of the Custom Visibility settings, allowing users with a role as low contributor to execute Arbitrary PHP code

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-94
Published	2021-10-11
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: extendify

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

Am I affected?

Timeline

2021-10-11 11:15 UTCPublished CVE record published
2026-06-17 03:40 UTCUpdated Record last modified

extendify editorskit UPGRADE

Affected: < 1.31.6

Fixed in: 1.31.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy editorskit || rpm -q editorskit || editorskit --version

2. UPGRADE to 1.31.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade editorskit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade editorskit

Note

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

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-2021-24546?

editorskit: upgrade to 1.31.6. Exact commands for each OS are on this page.

Is CVE-2021-24546 being exploited?

CVE-2021-24546 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-2021-24546 affect?

CVE-2021-24546 affects editorskit. Severity is high (CVSS 8.8). The Gutenberg Block Editor Toolkit – EditorsKit WordPress plugin before 1.31.6 does not sanitise and validate the Conditional Logic of the Custom Visibility settings, allowing users with a role as low contributor to execute Arbitrary PHP co

How urgent is CVE-2021-24546?

Priority 55/100. High severity; Public exploit reference

Software pages

WordPress vulnerabilities · PHP vulnerabilities

References

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