Which products and versions are affected by CVE-2021-24472?

Affected: Kentharadio (Qantumthemes); OnAir2 (Qantumthemes) versions >= 3.9.9.2; QT KenthaRadio (wordpress-theme) versions >= 2.0.2. The full list is in the CVE brief.

Is CVE-2021-24472 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-24472 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-24472?

No public exploit code is known.

Is there a fix for CVE-2021-24472?

Fixed versions are available, including OnAir2 3.9.9.2, Kentharadio 2.0.2, QT KenthaRadio 2.0.2.

How urgently should CVE-2021-24472 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2021-24472

Critical

QT KenthaRadio < 2.0.2 & OnAir2 < 3.9.9.2 - Server-Side Request Forgery & Remote File Inclusion

Published Aug 3, 2021 · Updated Apr 24, 2026 · Also known as 93b5552e-bb24-4dfb-a779-8451f619ff50

Key Facts

Patch immediately

CVE-2021-24472 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Kentharadio (Qantumthemes), OnAir2 (Qantumthemes), QT KenthaRadio (wordpress-theme).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 57% probability of exploitation in the next 30 days.
Fixed versions are available, including OnAir2 3.9.9.2, Kentharadio 2.0.2, QT KenthaRadio 2.0.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

9.8

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

EPSS (30-day exploit likelihood)

57%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2021-24472 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The OnAir2 WordPress theme before 3.9.9.2 and QT KenthaRadio WordPress plugin before 2.0.2 have exposed proxy functionality to unauthenticated users, sending requests to this proxy functionality will have the web server fetch and display the content from any URI, this would allow for SSRF (Server Side Request Forgery) and RFI (Remote File Inclusion) vulnerabilities on the website.

Affected Products

6 affected entries in total

Product	Affected versions	Fixed in
KentharadioQantumthemes	See advisory	2.0.2
OnAir2Qantumthemes	>= 3.9.9.2	3.9.9.2
QT KenthaRadiowordpress-theme	>= 2.0.2	2.0.2

Patched Releases

OnAir2

3.9.9.2

Kentharadio

2.0.2

QT KenthaRadio

2.0.2

Timeline

Publicly disclosed
Aug 3, 2021
Last updated
Apr 24, 2026

Weakness Type

CWE-918 Server-Side Request Forgery (SSRF)

References

9 more references in the full CVE brief

FAQ

Common Questions.

The OnAir2 WordPress theme before 3.9.9.2 and QT KenthaRadio WordPress plugin before 2.0.2 have exposed proxy functionality to unauthenticated users, sending requests to this proxy functionality will have the web server fetch and display the content from any URI, this would allow for SSRF (Server Side Request Forgery)…
Affected: Kentharadio (Qantumthemes); OnAir2 (Qantumthemes) versions >= 3.9.9.2; QT KenthaRadio (wordpress-theme) versions >= 2.0.2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including OnAir2 3.9.9.2, Kentharadio 2.0.2, QT KenthaRadio 2.0.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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