CVE-2021-24472Public exploitNetwork attack vector

Unauthenticated SSRF and RFI via exposed proxy

Published Aug 2, 2021 · Updated Aug 3, 2024

SSRF in Qantum Themes OnAir2 before 3.9.9.2 and KenthaRadio before 2.0.2 allows remote attackers to fetch arbitrary URIs. The exposed qtproxycall parameter accepts an attacker-supplied URI and makes the WordPress server retrieve and display its contents without authentication. Any reachable site using an affected theme or plugin exposes server-side access to internal or remote resources and can include remote content in its response.

CVSS severity9.8
Critical
EPSS probability56.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Qantum Themes OnAir2 before 3.9.9.2 and KenthaRadio before 2.0.2 allows remote attackers to fetch arbitrary URIs. The exposed qtproxycall parameter accepts an attacker-supplied URI and makes the WordPress server retrieve and display its contents without authentication. Any reachable site using an affected theme or plugin exposes server-side access to internal or remote resources and can include remote content in its response.

The record

CVE
CVE-2021-24472
Published
Aug 2, 2021
Updated
Aug 3, 2024
Vendor
Qantum Themes
Product
OnAir2
Classifications
CWE-918, CWE-98, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.9.9.2 <3.9.9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qantum Themes · OnAir2version=3.9.9.2 <3.9.9.2
Qantum Themes · KenthaRadioversion=2.0.2 <2.0.2

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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