vciy

CVE-2024-49754

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

LibreNMS has a stored XSS ('Cross-site Scripting') in librenms/includes/html/pages/api-access.inc.php

CVE-2024-497544 of 4 sources documented this
35

rank 35 = 18 + 14 + 1 + 2 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.71083  ·  without this subject the record ranks 17

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.4, from NVD  ·  without this subject the record ranks 21

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-12-24  ·  without this subject the record ranks 34

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 33

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 35

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.84Mover the next 30 days, if this record is yours
Movement+$160,000on 2026-03-11, the last material move, 5 months before this reading
Basisassumeda published average, not your estate

$2.84M = $4.99M incident cost x 0.8004932139359172 exposure x 0.71083 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

0.71083EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 68 days at 0.71, as of 2026-08-22. arc-rules@v1

Foresight · where to check next

Facebook WhatsAppCVE-2018-6882CVE-2024-27443CVE-2024-37383CVE-2024-42009CVE-2023-3419249754

This record is one instance of CWE-79, improper neutralization of input during web page generation ('cross-site scripting'). The index holds 47894 prior instances of this class, 32 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

Sources disagree here.

Severity score
GitHub_M7.5 HIGHreceipt
NVD5.4 MEDIUMreceipt
What it costs
GitHub_MComplete confidentiality loss; partial integrity and availability loss, with impact beyond the vulnerable componentreceipt
NVDPartial confidentiality and integrity loss, with impact beyond the vulnerable componentreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · high privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality loss; partial integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')receipt
Published consequencesCWE-79: Access Control, Confidentiality: Bypass Protection Mechanism, Read Application Data; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[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 branchlibrenms 24.10.0receipt
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, the CNA7.5 HIGHreceipt
CVSS, NVD5.4 MEDIUMreceipt
Exploit probability0.71083 · top 0.62% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes27 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productlibrenmsreceipt
Published rangeslibrenms < 24.10.0receipt

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

Network requestrequires high privileges, require…librenmsCWE-79 cross-site scriptingAdjacent componentsscope changeConfidentiality lossC:Hexploits CWE-79scope changedata compromise

What it is stated by the CNA

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Stored Cross-Site Scripting (XSS) vulnerability in the API-Access page allows authenticated users to inject arbitrary JavaScript through the "token" parameter when creating a new API token. This vulnerability can result in the execution of malicious code in the context of other users' sessions, compromising their accounts and enabling unauthorized actions. This vulnerability is fixed in 24.10.0. receipt

NVD's analysis a second authority

severity
5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
weakness
CWE-79
affected versions
librenms < 24.10.0
also scored by
[email protected] 7.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

The CNA scored it 7.5 and NVD 5.4. Both are shown because both were published; we do not pick one.

check it yourself github.com github.com receipt

Dated events

2025-12-24EPSS moved 0.01 to 0.082026-03-11EPSS moved 0.09 to 0.132026-06-15EPSS moved 0.12 to 0.70

Movement the material steps

16 Nov 20240.00043
17 Mar 20258e-05 · scoring model v2025.03.14
11 Mar 20260.12592 · crossed 0.10
15 Jun 20260.69818 · crossed 0.50 · scoring model v2026.06.15
22 Aug 20260.71083
Show all 27 observations
16 Nov 20240.00043
21 Nov 20240.00045
17 Mar 20258e-05
29 Mar 20250.00026
30 Mar 20258e-05
14 Apr 20259e-05
15 Apr 20250.00014
25 Apr 20250.00021
2 Jun 20250.00029
11 Jun 20250.00039
21 Jun 20250.00067
21 Jul 20250.00073
1 Aug 20250.00118
11 Aug 20250.00206
1 Sep 20250.00242
11 Sep 20250.00384
23 Sep 20250.01207
18 Nov 20250.00715
21 Nov 20250.01207
24 Dec 20250.08417
29 Dec 20250.08585
11 Mar 20260.12592
6 Apr 20260.14301
11 May 20260.11981
15 Jun 20260.69818
9 Aug 20260.70747
22 Aug 20260.71083

27 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 0.71083Published2024-11-15Index as of2026-08-22

The record had been public for 1 year, 9 months when this index was last written.

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

The pattern, elsewhere

This record is one instance of CWE-79, improper neutralization of input during web page generation ('cross-site scripting'). The index holds 47894 prior instances of this class, 32 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2019-18426 · Facebook WhatsApp Desktopmatches 6 of 9KEV listed · 2020receipt
CVE-2018-6882matches 5 of 8KEV listed · 2018receipt
CVE-2024-27443matches 5 of 8KEV listed · 2024receipt
CVE-2024-37383matches 5 of 8KEV listed · 2024receipt
CVE-2024-42009matches 5 of 8KEV listed · 2024receipt
CVE-2023-34192matches 5 of 8KEV listed · 2023receipt

"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

47894 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

Records related to this one

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