PatchTheCVECVE-2021-24472: The OnAir2 WordPress theme before 3.9.9.2 and QT KenthaRadio WordPress plugin before 2.0.2 have exposed proxy
CVE-2021-24472 is a critical-severity flaw (CVSS 9.8) affecting kentharadio, onair2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- EPSS top 1%: very likely to be exploited
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 56.6% (top 1%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2021-08-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- Write-up: wpscan.com/vulnerability/17591ac5-88fa-4cae-a61a-4dcf5dc0b72a
- Nuclei scan template: Onair2 < 3.9.9.2 & KenthaRadio < 2.0.2 - Remote File Inclusion/Server-Side Request Forgery
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-24472?
kentharadio: upgrade to 2.0.2; onair2: upgrade to 3.9.9.2. Exact commands for each OS are on this page.
Is CVE-2021-24472 being exploited?
CVE-2021-24472 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-24472 affect?
CVE-2021-24472 affects kentharadio, onair2. Severity is critical (CVSS 9.8). 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 th
How urgent is CVE-2021-24472?
Priority 69/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action