What is CVE-2021-24546?

CVE-2021-24546 is a high-severity vulnerability in Extendify Editorskit, classified under Code Injection. CVSS score: 8.8/10. Published 2021-10-11.

How severe is CVE-2021-24546?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-24546 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Extendify Editorskit

CVE-2021-24546

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

Vulnerability class: RCE (Remote Code Execution)

Published 2021-10-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.9th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Extendify Editorskit
Gutenberg Block Editor Toolkit – Editorskit — versions 1.31.6

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

References

wpscan.com/vulnerability/bdc36f6a-682d-4d66-b587-92e86085d971 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-24546?: CVE-2021-24546 is a high-severity vulnerability in Extendify Editorskit, classified under Code Injection. CVSS score: 8.8/10. Published 2021-10-11.
How severe is CVE-2021-24546?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24546 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.