vciy

CVE-2024-36453

INDEX BUILT · 2026-09-20

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Cross-site scripting vulnerability exists in session_login.cgi of Webmin versions prior to 1.970 and Usermin versions prior to 1.820

CVE-2024-364534 of 4 sources documented this
4

rank 4 = 0 + 0 + 0 + 4 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00400  ·  without this subject the record ranks 4

What it costs you if it fires

NVD CVSS base score, then the CNA's own

no CVSS held by anyone  ·  without this subject the record ranks 4

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 4

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 0

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 4

Hindsight · the state

0.004EPSSNOT IN KEVas of 2026-09-20
Severitynot scored
Harmnot stated
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-07-10, 708 days at 0.00, as of 2026-06-18. arc-rules@v1

Foresight · where to check next

QNAP Systems Inc.Cisco AdaptiveCVE-2018-6882ZimbraMicrosoft36453

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 signal

Running Webmin? 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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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

ReachNo CVSS vector in held sources, so no reach or impact can be stated.
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 branchusermin 1.820; webmin 1.970receipt
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

Exploit probability0.004 · top 66% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned byjpcertreceipt
Recorded changes18 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productWebmin; Webmin Userminreceipt
Published rangeswebmin usermin < 1.820; webmin < 1.970receipt

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

Cross-site scripting vulnerability exists in session_login.cgi of Webmin versions prior to 1.970 and Usermin versions prior to 1.820. If this vulnerability is exploited, an arbitrary script may be executed on the web browser of the user who accessed the website using the product. As a result, a webpage may be altered or sensitive information such as a credential may be disclosed. receipt

NVD's analysis a second authority

weakness
CWE-79
affected versions
webmin usermin < 1.820; webmin < 1.970
also scored by
6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

check it yourself webmin.com webmin.com jvn.jp receipt

Movement the material steps

10 Jul 20240.00045
17 Mar 20250.00127 · scoring model v2025.03.14
15 Jun 20260.00377 · scoring model v2026.06.15
18 Jun 20260.004
Show all 18 observations
10 Jul 20240.00045
17 Mar 20250.00127
26 Mar 20250.00157
29 Mar 20250.00131
30 Mar 20250.00157
5 Apr 20250.00175
15 Apr 20250.00077
26 Apr 20250.00084
6 May 20250.00098
17 Aug 20250.00191
18 Aug 20250.00159
23 Aug 20250.00287
9 Sep 20250.0022
18 Nov 20250.00245
21 Nov 20250.0022
29 Nov 20250.00298
15 Jun 20260.00377
18 Jun 20260.004

18 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 0.004Published2024-07-10Index as of2026-06-18

The record had been public for 1 year, 11 months when this index was last written.

Published 2024-07-10 receipt · Index as of 2026-06-18 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-2018-19943 · QNAP Systems Inc. QTSonly 1 attribute comparableKEV listed · 2020receipt
CVE-2018-19953 · QNAP Systems Inc. QTSonly 1 attribute comparableKEV listed · 2020receipt
CVE-2020-3580 · Cisco Adaptive Security Appliance (ASA)…only 1 attribute comparableKEV listed · 2020receipt
CVE-2018-6882nothing comparable heldKEV listed · 2018receipt
CVE-2025-66376 · Zimbra Collaborationonly 1 attribute comparableKEV listed · 2026receipt
CVE-2026-42897 · Microsoft Exchange Server 2016 Cumulative…only 1 attribute comparableKEV 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

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

Its defect family

webmin

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

Nothing we hold separates this record from the others in its defect family. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

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