CVE-2021-24220

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of data tampering, service disruption.

Exploit odds

3.9% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2021-01-14 00:00 UTC ReservedThe CVE id was reserved by its CNA
2. 2021-04-12 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
3. 2026-06-17 03:39 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.9% in the next 30 days (EPSS).
• Severity: 9.1 CRITICAL (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2021-04-12 14:15 UTC

Last modified

2026-06-17 03:39 UTC

Exploit probability

3.9% · EPSS, next 30 days

Weakness

CWE-434 · Unrestricted file upload

Record status

Modified

Affected

• 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

Attack profile CVSS 3.1 · 9.1

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-24220.md and follow it. Check whether this project is affected by CVE-2021-24220. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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