Vulnerabilities

Vulnerability · CVE-2021-24472

qantumthemes kentharadio Server-Side Request Forgery

Published Aug 2, 2021 · catalog updated Nov 2, 2026 · qantumthemes kentharadio Server-Side Request

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Patch now

CVE-2021-24472 is in the CISA known-exploited catalog. Confirm qantumthemes kentharadio Server-Side Request against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (qantumthemes kentharadio Server-Side Request).
Severity
Critical9.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
56.61%
Remediation
Remediation guidance
Affected products
cpe qantumthemes/kentharadio · cpe qantumthemes/onair2 · vendor qantumthemes kentharadio

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe qantumthemes/kentharadio< 2.0.2
  • cpe qantumthemes/onair2< 3.9.9.2
  • vendor qantumthemes kentharadioversion unspecified

How to fix CVE-2021-24472

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-24472 is in the CISA known-exploited catalog. Confirm qantumthemes kentharadio Server-Side Request against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with < 2.0.2, < 3.9.9.2. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-918: Server-Side Request Forgery (SSRF). EPSS 56.61%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 2, 2026 · VulnCheck KEV

    Detected

    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.

  2. Nov 2, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2021-24472

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2021-24472

    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

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2021-24472

    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

    vulncheck.com

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • VulnCheck KEVNov 5, 2026
  • CVE.orgNov 4, 2026
  • NIST NVDNov 3, 2026