vciy

CVE-2025-2746

INDEX BUILT · 2026-09-20

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Kentico Xperience <= 13.0.172 Staging Sync Server Digest Password Authentication Bypass

CVE-2025-27464 of 4 sources documented this
84

rank 84 = 40 + 25 + 9 + 2 + 8

rank@v1 · act now

Someone is already using it

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

EPSS 0.59052 · CISA KEV listed  ·  without this subject the record ranks 44

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from the CNA  ·  without this subject the record ranks 59

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-21  ·  without this subject the record ranks 75

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 82

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 76

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.95Mover the next 30 days, if this record is yours
Movement+$24,200on 2026-06-04, the last material move, 3 months before this reading
Basisassumeda published average, not your estate

$2.95M = $4.99M incident cost x 1 exposure x 0.59052 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

0.59052EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.59, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Kentico XperienceFortinet FortiOSJetBrainsF5 BIG-IPFortinet FortiWeb2746

This record is one instance of CWE-288, authentication bypass using an alternate path or channel. The index holds 680 prior instances of this class, 19 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]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed inNo fix version in held sources, as the index stood on 4 Sep 2026.
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.
CISA remediation statusoverdue since 2025-11-10receipt
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV210 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2025-10-20.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2025-10-20receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA9.8 CRITICALreceipt
Exploit probability0.59052 · top 0.93% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byVulnCheckreceipt
Recorded changes50 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productKentico Xperiencereceipt
Published rangeskentico xperience <= 13.0.172receipt

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 interactionCISA KEV listingadded 10-20 · due 11-10Kentico XperienceCWE-288 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-288data compromise

What it is stated by the CNA

An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging Sync Server password handling of empty SHA1 usernames in digest authentication. Authentication bypass allows an attacker to control administrative objects.This issue affects Xperience through 13.0.172. receipt

NVD's analysis a second authority

weakness
CWE-288
affected versions
kentico xperience <= 13.0.172
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 labs.watchtowr.com devnet.kentico.com github.com vulncheck.com receipt

Dated events

2025-10-20Added to CISA KEV2025-10-21EPSS moved 0.00 to 0.592025-11-10CISA remediation due2026-06-15EPSS moved 0.90 to 0.58

Movement the material steps

25 Mar 20250.00098
21 Oct 20250.59237 · crossed 0.10 and 0.50
25 Oct 20250.77342
28 Oct 20250.66523
11 Nov 20250.84851
4 Jun 20260.90218 · crossed 0.90
15 Jun 20260.57992 · crossed 0.90 · scoring model v2026.06.15
20 Aug 20260.59052

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

Show all 39 observations
25 Mar 20250.00098
26 Mar 20250.00095
27 Mar 20250.00099
29 Mar 20250.0006
30 Mar 20250.00118
18 Apr 20250.00116
25 Apr 20250.00127
31 May 20250.00134
24 Jul 20250.00166
20 Aug 20250.00147
21 Aug 20250.00164
1 Sep 20250.00181
17 Oct 20250.00291
18 Oct 20250.00246
21 Oct 20250.59237
23 Oct 20250.62608
24 Oct 20250.67233
25 Oct 20250.77342
28 Oct 20250.66523
7 Nov 20250.66739
11 Nov 20250.84851
18 Nov 20250.8756
21 Nov 20250.85159
4 Dec 20250.85899
8 Dec 20250.87559
18 Dec 20250.87412
1 Jan 20260.868
4 Jan 20260.87412
1 Feb 20260.868
4 Feb 20260.87412
1 Mar 20260.868
2 Mar 20260.86236
4 Mar 20260.86075
18 Mar 20260.84284
2 May 20260.89733
4 Jun 20260.90218
15 Jun 20260.57992
25 Jun 20260.58431
20 Aug 20260.59052

39 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 0.59052Published2025-03-24CISA KEV2025-10-20Index as of2026-09-04

Listed by CISA 210 days after it published, exploit probability more than doubled between 2025-10-18 and 2025-10-21 (0.00246 → 0.59237) and the record had been public for 1 year, 5 months when this index was last written.

No material movement in 15 days as of the last ingest this index recorded.

Published 2025-03-24 receipt · CISA KEV 2025-10-20 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-288, authentication bypass using an alternate path or channel. The index holds 680 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-2747 · Kentico Xperiencematches 9 of 9KEV listed · 2025receipt
CVE-2024-55591 · Fortinet FortiOSmatches 8 of 9KEV listed · 2025receipt
CVE-2024-27198 · JetBrains TeamCitymatches 8 of 9KEV listed · 2024receipt
CVE-2023-42793 · JetBrains TeamCitymatches 8 of 9KEV listed · 2023receipt
CVE-2023-46747 · F5 BIG-IPmatches 8 of 9KEV listed · 2023receipt
CVE-2026-24858 · Fortinet FortiWebmatches 8 of 9KEV 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

680 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

kentico xperience

Of the 2 records in this family, this is the only one whose title names 13.0.172 digest.

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

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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