CVE-2021-24220

Name: CVE-2021-24220
Creator: NVD / NIST
Published: 2021-04-12T14:15:15.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 3.95%

Last modified Jun 17, 2026

CVE-2021-24220 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Thrive “Legacy” Rise by Thrive Themes WordPress theme before 2.0.0, Luxe by Thrive Themes WordPress theme before 2.0.0, Minus by Thrive Themes WordPress theme before 2.0.0, Ignition by Thrive Themes WordPress theme before 2.0.0, FocusBlog by Thrive Themes WordPress theme before 2.0.0, Squared by Thrive Themes WordPress theme before 2.0.0, Voice WordPress theme before 2.0.0, Performag by Thrive Themes WordPress theme before 2.0.0, Pressive by Thrive Themes WordPress theme before 2.0.0, Storied by Thrive Themes WordPress theme before 2.0.0 register a REST API endpoint to compress images using the Kraken image optimization engine. By supplying a crafted request in combination with data inserted using the Option Update vulnerability, it was possible to use this endpoint to retrieve malicious code from a remote URL and overwrite an existing file on the site with it or create a new file.This includes executable PHP files that contain malicious code.. EPSS estimates a 3.95% chance of exploitation in the next 30 days.

Description

Thrive “Legacy” Rise by Thrive Themes WordPress theme before 2.0.0, Luxe by Thrive Themes WordPress theme before 2.0.0, Minus by Thrive Themes WordPress theme before 2.0.0, Ignition by Thrive Themes WordPress theme before 2.0.0, FocusBlog by Thrive Themes WordPress theme before 2.0.0, Squared by Thrive Themes WordPress theme before 2.0.0, Voice WordPress theme before 2.0.0, Performag by Thrive Themes WordPress theme before 2.0.0, Pressive by Thrive Themes WordPress theme before 2.0.0, Storied by Thrive Themes WordPress theme before 2.0.0 register a REST API endpoint to compress images using the Kraken image optimization engine. By supplying a crafted request in combination with data inserted using the Option Update vulnerability, it was possible to use this endpoint to retrieve malicious code from a remote URL and overwrite an existing file on the site with it or create a new file.This includes executable PHP files that contain malicious code.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

3.95%

89.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Thrivethemes	Focusblog	< 2.0.0
Thrivethemes	Ignition	< 2.0.0
Thrivethemes	Luxe	< 2.0.0
Thrivethemes	Minus	< 2.0.0
Thrivethemes	Performag	< 2.0.0
Thrivethemes	Pressive	< 2.0.0
Thrivethemes	Rise	< 2.0.0
Thrivethemes	Squared	< 2.0.0
Thrivethemes	Storied	< 2.0.0
Thrivethemes	Voice	< 2.0.0

References

https://wpscan.com/vulnerability/a2424354-2639-4f53-a24f-afc11f6c4cacExploit, Third Party Advisory
https://www.wordfence.com/blog/2021/03/recently-patched-vulnerability-in-thrive-themes-actively-exploited-in-the-wildThird Party Advisory
https://wpscan.com/vulnerability/a2424354-2639-4f53-a24f-afc11f6c4cacExploit, Third Party Advisory
https://www.wordfence.com/blog/2021/03/recently-patched-vulnerability-in-thrive-themes-actively-exploited-in-the-wildThird Party Advisory

Timeline

Published: Apr 12, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24220?

How severe is CVE-2021-24220?

CVE-2021-24220 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 3.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24220?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-24220?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST