vciy

CVE-2020-5245

INDEX BUILT · 2026-09-20

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Remote Code Execution (RCE) vulnerability in dropwizard-validation

CVE-2020-52454 of 4 sources documented this
43

rank 43 = 15 + 22 + 1 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.03006  ·  without this subject the record ranks 28

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, 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 2025-10-30  ·  without this subject the record ranks 42

How much of the world it touches

NVD CPE configurations

3 products in the CPE ranges  ·  without this subject the record ranks 38

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 43

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$139,000over the next 30 days, if this record is yours
Movement-$175,000on 2025-11-29, the last material move, 8 months before this reading
Basisassumeda published average, not your estate

$139,000 = $4.99M incident cost x 0.9280467328949208 exposure x 0.03006 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

0.03006EPSSNOT IN KEVas of 2026-09-20
Severity7.9 HIGHreceipt
Harmpartial impactreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseunaffected versions publishedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-03-30, 499 days at 0.03, as of 2026-08-11. arc-rules@v1

Foresight · where to check next

Apache SolrAtlassianCisco IdentityHitachi VantaraTrend Micro5245

This record is one instance of CWE-74, improper neutralization of special elements in output used by a downstream component ('injection'). The index holds 5545 prior instances of this class, 13 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_M7.9 HIGHreceipt
NVD8.8 HIGHreceipt
What it costs
GitHub_MComplete confidentiality and integrity loss; partial availability loss, with impact beyond the vulnerable componentreceipt
NVDComplete confidentiality, integrity and availability lossreceipt

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

Running dropwizard-validation? 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.

Reachnetwork-reachable · low privileges required · user interaction required · high attack complexityreceipt
ImpactComplete confidentiality and integrity loss; partial availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')receipt
Published consequencesCWE-74: Confidentiality: Read Application Data; Access Control: Bypass Protection Mechanism; Other: Alter Execution Logic; Integrity, Other: Other; Non-Repudiation: Hide Activities[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 branchvalidation 1.3.19; validation 2.0.2; blockchain platform 21.1.2receipt
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 · 1 public repository, 2023-02-17.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2023-02-17receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.9 HIGHreceipt
CVSS, NVD8.8 HIGHreceipt
Exploit probability0.03006 · top 13% of all CVEsreceipt
Blast breadth2 products across 2 vendorsderived
Assigned byGitHub_Mreceipt
Recorded changes35 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productdropwizard-validationreceipt
Published rangesdropwizard validation < 1.3.19; dropwizard validation >= 2.0.0 < 2.0.2; oracle blockchain platform < 21.1.2receipt

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

Network requestrequires low privileges, requires…dropwizard-validationCWE-74 weaknessAdjacent componentsscope changeConfidentiality and integrity lossC:H / I:Hexploits CWE-74scope changedata compromise

What it is stated by the CNA

Dropwizard-Validation before 1.3.19, and 2.0.2 may allow arbitrary code execution on the host system, with the privileges of the Dropwizard service account, by injecting arbitrary Java Expression Language expressions when using the self-validating feature. The issue has been fixed in dropwizard-validation 1.3.19 and 2.0.2. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-74
affected versions
dropwizard validation < 1.3.19; dropwizard validation >= 2.0.0 < 2.0.2; oracle blockchain platform < 21.1.2
also scored by
[email protected] 7.9 CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L

The CNA scored it 7.9 and NVD 8.8. Both are shown because both were published; we do not pick one.

check it yourself github.com github.com github.com github.com github.com beanvalidation.org +2 morereceipt

Dated events

2022-01-06EPSS moved 0.03 to 0.122023-03-07EPSS moved 0.30 to 0.002025-11-29EPSS moved 0.10 to 0.06

Movement the material steps

14 Apr 20210.02888
6 Jan 20220.11772 · crossed 0.10
4 Feb 20220.26676
1 Apr 20220.02422 · crossed 0.10
18 Feb 20230.29615 · crossed 0.10
7 Mar 20230.00304 · crossed 0.10 · scoring model v2023.03.01
17 Mar 20250.03792 · scoring model v2025.03.14
19 Mar 20250.25776 · crossed 0.10
20 Mar 20250.03792 · crossed 0.10
27 Mar 20250.25776 · crossed 0.10
28 Mar 20250.03792 · crossed 0.10
29 Mar 20250.25776 · crossed 0.10
30 Mar 20250.03792 · crossed 0.10
30 Oct 20250.10075 · crossed 0.10
18 Nov 20250.04765 · crossed 0.10
21 Nov 20250.10075 · crossed 0.10
29 Nov 20250.06297 · crossed 0.10
15 Jun 20260.0281 · scoring model v2026.06.15
11 Aug 20260.03006

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

Show all 32 observations
14 Apr 20210.02888
6 Jan 20220.11772
4 Feb 20220.26676
1 Apr 20220.02422
20 Apr 20220.02583
18 Feb 20230.29615
7 Mar 20230.00304
21 Sep 20230.00432
6 Jun 20240.00867
17 Dec 20240.00567
17 Mar 20250.03792
19 Mar 20250.25776
20 Mar 20250.03792
27 Mar 20250.25776
28 Mar 20250.03792
29 Mar 20250.25776
30 Mar 20250.03792
23 Apr 20250.03975
28 Apr 20250.04367
20 May 20250.02855
22 May 20250.04339
31 May 20250.04864
14 Jul 20250.04339
23 Jul 20250.04864
30 Oct 20250.10075
18 Nov 20250.04765
21 Nov 20250.10075
29 Nov 20250.06297
31 May 20260.06001
15 Jun 20260.0281
12 Jul 20260.0309
11 Aug 20260.03006

32 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 0.03006Published2020-02-24Public PoC2023-02-17Index as of2026-08-11

Exploit probability more than doubled between 2025-03-17 and 2025-03-19 (0.03792 → 0.25776) and the record had been public for 6 years, 5 months when this index was last written.

Published 2020-02-24 receipt · Public PoC 2023-02-17 receipt · Index as of 2026-08-11 derived

The pattern, elsewhere

This record is one instance of CWE-74, improper neutralization of special elements in output used by a downstream component ('injection'). The index holds 5545 prior instances of this class, 13 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2019-17558 · Apache Solrmatches 5 of 9KEV listed · 2019receipt
CVE-2023-22527 · Atlassian Confluence Data Centermatches 4 of 9KEV listed · 2024receipt
CVE-2025-20281 · Cisco Identity Services Engine Softwarematches 4 of 9KEV listed · 2025receipt
CVE-2025-20337 · Cisco Identity Services Engine Softwarematches 4 of 9KEV listed · 2025receipt
CVE-2022-43769 · Hitachi Vantara Pentaho Business Analytics…matches 4 of 9KEV listed · 2023receipt
CVE-2020-8468 · Trend Micro Worry-Free Business Security…matches 4 of 9KEV listed · 2020receipt

"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

5545 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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