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CVE-2025-4388

INDEX BUILT · 2026-09-20

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A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.5…

CVE-2025-43884 of 4 sources documented this
23

rank 23 = 1 + 15 + 2 + 5 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.03794  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.1, from NVD  ·  without this subject the record ranks 8

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2026-03-04  ·  without this subject the record ranks 21

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 18

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 23

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$81,000over the next 30 days, if this record is yours
Movement+$320,000on 2026-03-04, the last material move, 5 months before this reading
Basisassumeda published average, not your estate

$81,000 = $4.99M incident cost x 0.42806422275080447 exposure x 0.03794 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

0.03794EPSSNOT IN KEVas of 2026-09-20
Severity6.9 MEDIUMreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-14, 54 days at 0.04, as of 2026-08-07. arc-rules@v1

Foresight · where to check next

MDaemon EmailQNAP Systems Inc.Cisco AdaptiveCVE-2018-6882Zimbra4388

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
Liferay6.9 MEDIUMreceipt
NVD6.1 MEDIUMreceipt
Scoring standard
LiferayCVSS v4.0receipt
NVDCVSS v3.1receipt

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 · no privileges required · no user interaction · low attack complexity · no attack requirementsreceipt
ImpactPartial confidentiality and integrity loss, with impact on subsequent systemsreceipt
Scored fromCVSS v4.0 · 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 branchportal 7.4.3.132; digital experience platform 2024.Q1.13; digital experience platform 2024.q4.6receipt
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 CNA6.9 MEDIUMreceipt
CVSS, NVD6.1 MEDIUMreceipt
Exploit probability0.03794 · top 10% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned byLiferayreceipt
Recorded changes54 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productLiferay Portal; Liferay DXPreceipt
Published rangesliferay digital experience platform >= 2024.Q1.1 < 2024.Q1.13; liferay digital experience platform >= 2024.q2.0 < 2024.q4.6; liferay digital experience platform 7.4; liferay portal >= 7.4.0 < 7.4.3.132receipt

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

A reflected cross-site scripting (XSS) vulnerability in the Liferay Portal 7.4.0 through 7.4.3.131, and Liferay DXP 2024.Q4.0 through 2024.Q4.5, 2024.Q3.1 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.12, 7.4 GA through update 92 allows an remote non-authenticated attacker to inject JavaScript into the modules/apps/marketplace/marketplace-app-manager-web. receipt

NVD's analysis a second authority

severity
6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
weakness
CWE-79
affected versions
liferay digital experience platform >= 2024.Q1.1 < 2024.Q1.13; liferay digital experience platform >= 2024.q2.0 < 2024.q4.6; liferay digital experience platform 7.4; and 1 more, listed in full below
also scored by
[email protected] 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

The CNA scored it 6.9 and NVD 6.1. Both are shown because both were published; we do not pick one.

check it yourself liferay.dev receipt

Dated events

2025-11-18EPSS moved 0.03 to 0.132026-03-04EPSS moved 0.05 to 0.202026-06-15EPSS moved 0.14 to 0.03

Movement the material steps

7 May 20250.00047
18 Nov 20250.12566 · crossed 0.10
21 Nov 20250.03572 · crossed 0.10
17 Dec 20250.18397 · crossed 0.10
1 Jan 20260.02908 · crossed 0.10
4 Jan 20260.13137 · crossed 0.10
1 Feb 20260.02625 · crossed 0.10
4 Feb 20260.13137 · crossed 0.10
1 Mar 20260.03064 · crossed 0.10
4 Mar 20260.20067 · crossed 0.10
15 Jun 20260.03286 · crossed 0.10 · scoring model v2026.06.15
7 Aug 20260.03794

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

Show all 54 observations
7 May 20250.00047
12 May 20250.00062
15 May 20250.01965
4 Jun 20250.01673
7 Jun 20250.0182
15 Jun 20250.02136
28 Jun 20250.02081
30 Jun 20250.03127
1 Jul 20250.02874
4 Jul 20250.02326
6 Jul 20250.02004
13 Jul 20250.02092
19 Jul 20250.03983
31 Jul 20250.04773
1 Aug 20250.01635
4 Aug 20250.04773
12 Aug 20250.05937
28 Aug 20250.05522
1 Sep 20250.0176
4 Sep 20250.05522
5 Sep 20250.06844
1 Oct 20250.02209
2 Oct 20250.00859
3 Oct 20250.0079
4 Oct 20250.03244
14 Oct 20250.02782
22 Oct 20250.02399
27 Oct 20250.02726
1 Nov 20250.00764
4 Nov 20250.02504
11 Nov 20250.03263
18 Nov 20250.12566
21 Nov 20250.03572
28 Nov 20250.03884
1 Dec 20250.01004
3 Dec 20250.0127
4 Dec 20250.04476
17 Dec 20250.18397
18 Dec 20250.14414
21 Dec 20250.13137
1 Jan 20260.02908
4 Jan 20260.13137
1 Feb 20260.02625
2 Feb 20260.03064
4 Feb 20260.13137
1 Mar 20260.03064
2 Mar 20260.05077
4 Mar 20260.20067
25 Mar 20260.25059
14 Jun 20260.13533
15 Jun 20260.03286
22 Jun 20260.03446
27 Jul 20260.03719
7 Aug 20260.03794

54 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 0.03794Published2025-05-06Index as of2026-08-07

Exploit probability more than doubled between 2025-05-12 and 2025-05-15 (0.00062 → 0.01965) and the record had been public for 1 year, 3 months when this index was last written.

Published 2025-05-06 receipt · Index as of 2026-08-07 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-2024-11182 · MDaemon Email Servermatches 7 of 9KEV listed · 2024receipt
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

"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.

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