vciy

CVE-2021-24472

INDEX BUILT · 2026-09-20

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

CVE-2021-244724 of 4 sources documented this
43

rank 43 = 14 + 25 + 0 + 4 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.56614  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 18

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 43

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 39

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 43

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.83Mover the next 30 days, if this record is yours
Movement-$75,200on 2025-03-30, the last material move, 1 year, 2 months before this reading
Basisassumeda published average, not your estate

$2.83M = $4.99M incident cost x 1 exposure x 0.56614 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.56614EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementscoring model changedreceipt
RISING10Risen from 0.00556 to 0.56614 across 34 observations. arc-rules@v1

Foresight · where to check next

CVE-2021-27103CVE-2020-7796VMware vCenterBIG-IPSonicWall SMA1000Microsoft24472

This record is one instance of CWE-918, server-side request forgery (ssrf). The index holds 3592 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running QantumThemes QT KenthaRadio? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Matches your own product list against every record this index holds, and tells you when one of them moves.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-918 Server-Side Request Forgery (SSRF)receipt
Published consequencesCWE-918: Confidentiality: Read Application Data; Integrity: Execute Unauthorized Code or Commands; Access Control: Bypass Protection Mechanism[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed in2.0.2; 3.9.9.2receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.56614 · top 0.99% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned byWPScanreceipt
Recorded changes34 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productQantumThemes QT KenthaRadio; QantumThemes OnAir2receipt
Published rangesqantumthemes kentharadio < 2.0.2; qantumthemes onair2 < 3.9.9.2receipt
Fixed in2.0.2; 3.9.9.2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-918
affected versions
qantumthemes kentharadio < 2.0.2; qantumthemes onair2 < 3.9.9.2

check it yourself wpscan.com receipt

Dated events

2022-02-04EPSS moved 0.02 to 0.202025-03-17EPSS moved 0.16 to 0.832026-06-15EPSS moved 0.90 to 0.57

Movement the material steps

3 Aug 20210.00556
4 Feb 20220.19548 · crossed 0.10
1 Apr 20220.01055 · crossed 0.10
7 Mar 20230.01359 · scoring model v2023.03.01
18 Nov 20240.13208 · crossed 0.10
17 Mar 20250.82852 · crossed 0.50 · scoring model v2025.03.14
29 Mar 20250.91328 · crossed 0.90
30 Mar 20250.8982 · crossed 0.90
18 Nov 20250.71705
21 Nov 20250.8982
15 Jun 20260.56614 · scoring model v2026.06.15

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 34 observations
3 Aug 20210.00556
6 Jan 20220.02445
4 Feb 20220.19548
1 Apr 20220.01055
7 Mar 20230.01359
10 Mar 20230.01708
24 Mar 20230.01878
18 Jul 20230.02619
25 Oct 20230.02920
22 Nov 20230.03476
15 Jan 20240.03831
25 Feb 20240.04743
8 Mar 20240.04362
17 Apr 20240.04616
1 May 20240.03476
13 May 20240.03231
24 Jun 20240.03590
21 Jul 20240.06577
18 Sep 20240.07900
18 Nov 20240.13208
5 Dec 20240.13939
17 Dec 20240.15874
20 Dec 20240.13847
16 Mar 20250.16316
17 Mar 20250.82852
18 Mar 20250.83434
23 Mar 20250.88688
24 Mar 20250.87181
26 Mar 20250.8982
29 Mar 20250.91328
30 Mar 20250.8982
18 Nov 20250.71705
21 Nov 20250.8982
15 Jun 20260.56614

34 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.56614Published2021-08-02Index as of2026-06-15

Exploit probability more than doubled between 2025-03-16 and 2025-03-17 (0.16316 → 0.82852) and the record had been public for 4 years, 10 months when this index was last written.

Published 2021-08-02 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-918, server-side request forgery (ssrf). The index holds 3592 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2021-27103matches 8 of 8KEV listed · 2021receipt
CVE-2020-7796matches 8 of 8KEV listed · 2020receipt
CVE-2021-21985 · VMware vCenter Server and VMware Cloud…matches 8 of 9KEV listed · 2021receipt
CVE-2021-22986 · BIG-IPmatches 8 of 9KEV listed · 2021receipt
CVE-2026-15409 · SonicWall SMA1000matches 7 of 9KEV listed · 2026receipt
CVE-2022-41040 · Microsoft Exchange Server 2013 Cumulative…matches 7 of 9KEV listed · 2022receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

3592 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

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