vciy

CVE-2024-10924

INDEX BUILT · 2026-09-20

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Really Simple Security (Free, Pro, and Pro Multisite) 9.0.0 - 9.1.1.1 - Authentication Bypass

CVE-2024-109244 of 4 sources documented this
54

rank 54 = 27 + 25 + 0 + 2 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.82025  ·  without this subject the record ranks 27

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 29

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 54

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 52

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 54

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.09Mover the next 30 days, if this record is yours
Movement+$1.11Mon 2024-12-07, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$4.09M = $4.99M incident cost x 1 exposure x 0.82025 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

0.82025EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 68 days at 0.82, as of 2026-08-22. arc-rules@v1

Foresight · where to check next

JetBrainsF5 BIG-IPSolarWinds OrionFortinet FortiOSFortinet FortiWeb10924

This record is one instance of CWE-288, authentication bypass using an alternate path or channel. The index holds 681 prior instances of this class, 20 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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-288 Authentication Bypass Using an Alternate Path or Channelreceipt
Published consequencesCWE-288: 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.

First unaffected version, by branchreally simple security 9.1.2receipt
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: Proof-of-concept published · 19 public repositories, 2024-11-14.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 19 public repositories2024-11-14receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA9.8 CRITICALreceipt
CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.82025 · top 0.36% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byWordfencereceipt
Recorded changes34 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productReally Simple Plugins Really Simple Security Pro multisite; rogierlankhorst Really Simple Security – Simple and Performant Security (formerly Really Simple SSL)…receipt
Published rangesreally-simple-plugins really simple security >= 9.0.0 < 9.1.2receipt

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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Attack path

Unauthenticated network requestno credentials, no interactionPerformant Security (formerly Reall…CWE-288 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-288data compromise

What it is stated by the CNA

The Really Simple Security (Free, Pro, and Pro Multisite) plugins for WordPress are vulnerable to authentication bypass in versions 9.0.0 to 9.1.1.1. This is due to improper user check error handling in the two-factor REST API actions with the 'check_login_and_get_user' function. This makes it possible for unauthenticated attackers to log in as any existing user on the site, such as an administrator, when the "Two-Factor Authentication" setting is enabled (disabled by default). 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-288; CWE-306
affected versions
really-simple-plugins really simple security >= 9.0.0 < 9.1.2
also scored by
[email protected] 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself wordfence.com plugins.trac.wordpress.org plugins.trac.wordpress.org plugins.trac.wordpress.org plugins.trac.wordpress.org wordfence.com receipt

Dated events

2024-12-07EPSS moved 0.01 to 0.232025-03-17EPSS moved 0.28 to 0.932026-06-15EPSS moved 0.94 to 0.82

Movement the material steps

15 Nov 20240.00045
7 Dec 20240.23017 · crossed 0.10
17 Mar 20250.9287 · crossed 0.50 and 0.90 · scoring model v2025.03.14
15 Jun 20260.81722 · crossed 0.90 · scoring model v2026.06.15
22 Aug 20260.82025

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

Show all 31 observations
15 Nov 20240.00045
20 Nov 20240.00044
21 Nov 20240.00101
4 Dec 20240.00740
7 Dec 20240.23017
2 Mar 20250.27654
17 Mar 20250.9287
20 Mar 20250.92517
23 Mar 20250.9287
28 Mar 20250.92517
29 Mar 20250.9287
30 Mar 20250.92517
15 Apr 20250.93421
16 Apr 20250.93436
19 Apr 20250.93781
15 May 20250.9395
9 Jun 20250.93628
17 Jul 20250.9395
19 Aug 20250.93628
16 Sep 20250.9395
7 Oct 20250.93628
18 Nov 20250.92587
21 Nov 20250.93628
23 Dec 20250.93708
28 Dec 20250.93799
18 Feb 20260.93913
18 Mar 20260.94018
19 Mar 20260.9373
6 Apr 20260.93889
15 Jun 20260.81722
22 Aug 20260.82025

31 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 0.82025Public PoC2024-11-14Published2024-11-15Index as of2026-08-22

Exploit probability more than doubled between 2024-11-20 and 2024-11-21 (0.00044 → 0.00101) and the record had been public for 1 year, 9 months when this index was last written.

Public PoC 2024-11-14 receipt · Published 2024-11-15 receipt · Index as of 2026-08-22 derived

The pattern, elsewhere

This record is one instance of CWE-288, authentication bypass using an alternate path or channel. The index holds 681 prior instances of this class, 20 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2023-42793 · JetBrains TeamCitymatches 9 of 10KEV listed · 2023receipt
CVE-2023-46747 · F5 BIG-IPmatches 9 of 10KEV listed · 2023receipt
CVE-2020-10148 · SolarWinds Orion Platformmatches 9 of 10KEV listed · 2020receipt
CVE-2024-55591 · Fortinet FortiOSmatches 8 of 10KEV listed · 2025receipt
CVE-2024-27198 · JetBrains TeamCitymatches 8 of 10KEV listed · 2024receipt
CVE-2026-24858 · Fortinet FortiWebmatches 8 of 10KEV listed · 2026receipt

"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

681 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.

Siblings and hubs

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