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Fencer Vulns
critical 9.8

CVE-2021-24472 in the critical feed json

Onair2 < 3.9.9.2 & KenthaRadio < 2.0.2 - Unauthenticated RFI and SSRF

published 2021-08-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11384

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
56.6%
EPSS 56.6% chance of exploitation in 30 days, percentile 99%
public exploits
0
none known, plus a Nuclei check

Summary

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.

Patch / fix

  • qantumthemes kentharadio 2.0.2
  • qantumthemes onair2 3.9.9.2

Exploit prediction

56.61% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template Onair2 < 3.9.9.2 & KenthaRadio < 2.0.2 - Remote File Inclusion/Server-Side Request Forgery nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/17591ac5-88fa-4cae-a61a-4dcf5dc0b72a referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • QantumThemes QT KenthaRadio
  • QantumThemes OnAir2

Classification

Weakness
  • CWE-918 Server-Side Request Forgery
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.