CASCACascade Atlas

Evidence dossier

CVE-2019-3398

Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource.

Exploited in the wild (CISA KEV since Nov 3, 2021). NVD reports CVSS 3.1 8.8. EPSS estimates 96.8% exploit likelihood as of Aug 9, 2026.

84.3–85.9Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.

State
PUBLISHED
Published
Apr 18, 2019
Updated
Oct 21, 2025
Evidence coverage
97%

Evidence chronology

What was known when

Download this view's receipt →
  1. Source dateSource date omittedFirst observed by CASCA
    atlassian

    Record text: Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.

    Inspect raw assertion
    Field
    container
    Value
    Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Atlassian Confluence Server and Data Center Path Traversal Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Atlassian Confluence Server and Data Center Path Traversal Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 96.84% probability · 99.88th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.968370000000; percentile 0.998830000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Nov 3, 2021 · first observed Jul 19, 2026

Exploit likelihood96.84%

FIRST EPSS · score date Aug 9, 2026 · 99.9th percentile · first observed Aug 9, 2026

SeverityCVSS 8.8

NVD · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

atlassianOriginal assertion
Record text

Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.

Inspect raw assertion
Field
container
Value
Confluence Server and Data Center had a path traversal vulnerability in the downloadallattachments resource. A remote attacker who has permission to add attachments to pages and / or blogs or to create a new space or a personal space or who has 'Admin' permissions for a space can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Confluence Server or Data Center. All versions of Confluence Server from 2.0.0 before 6.6.13 (the fixed version for 6.6.x), from 6.7.0 before 6.12.4 (the fixed version for 6.12.x), from 6.13.0 before 6.13.4 (the fixed version for 6.13.x), from 6.14.0 before 6.14.3 (the fixed version for 6.14.x), and from 6.15.0 before 6.15.2 are affected by this vulnerability.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Atlassian Confluence Server and Data Center Path Traversal Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Atlassian Confluence Server and Data Center Path Traversal Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

96.84% probability · 99.88th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.968370000000; percentile 0.998830000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
5Underlying assertions
1Canonical products
5Target assertions
0Constraint assertions

Grouped from 1 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

2 scope groups

atlassian · source assertedAtlassianConfluenceDirect source scope
Affected: 2.0.0 to before unspecified (custom comparison)Affected: unspecified to before 6.6.13 (custom comparison)Affected: 6.7.0 to before unspecified (custom comparison)Affected: unspecified to before 6.12.4 (custom comparison)Affected: 6.13.0 to before unspecified (custom comparison)Affected: unspecified to before 6.13.4 (custom comparison)Affected: 6.14.0 to before unspecified (custom comparison)Affected: unspecified to before 6.14.3 (custom comparison)Affected: 6.15.0 to before unspecified (custom comparison)Affected: unspecified to before 6.15.2 (custom comparison)
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "2.0.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "6.6.13", "versionType": "custom"}, {"status": "affected", "version": "6.7.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "6.12.4", "versionType": "custom"}, {"status": "affected", "version": "6.13.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "6.13.4", "versionType": "custom"}, {"status": "affected", "version": "6.14.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "6.14.3", "versionType": "custom"}, {"status": "affected", "version": "6.15.0", "lessThan": "unspecified", "versionType": "custom"}, {"status": "affected", "version": "unspecified", "lessThan": "6.15.2", "versionType": "custom"}]
NVD CPE · APPLICATIONatlassianconfluence_serverVulnerable target · 5 assertions
Any version (unconstrained) (>= 2.0, < 6.6.13); Any version (unconstrained) (>= 6.13.0, < 6.13.4); Any version (unconstrained) (>= 6.14.0, < 6.14.3); Any version (unconstrained) (>= 6.15.0, < 6.15.2); Any version (unconstrained) (>= 6.7.0, < 6.12.4)Canonical identity product-d78d3c5ab9c4bc766839e98def83496ad4b2f4f37b30094660d7525704ae86c2Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    from including 6.13.0; through excluding 6.13.4
    Match ID
    3b8fc02e-be73-4ca7-bcea-41ae17b7a3dc
  2. cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 3
    Logic
    OR
    Version bounds
    from including 6.14.0; through excluding 6.14.3
    Match ID
    0302809c-5a6c-4698-b2ae-69021a96ad67
  3. cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 4
    Logic
    OR
    Version bounds
    from including 6.15.0; through excluding 6.15.2
    Match ID
    21cd506c-79b6-4e96-80cc-9cc996e8e428
  4. cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 2.0; through excluding 6.6.13
    Match ID
    0d168206-104a-4472-b80c-53c690aad3ad
  5. cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    from including 6.7.0; through excluding 6.12.4
    Match ID
    913a98a6-05f2-44d3-9997-c9665b00cc1f

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-2c6716ad07a7f126f6c3b10254124705a45f0fa6586f2803bb482afd1584ee5f · product-d78d3c5ab9c4bc766839e98def83496ad4b2f4f37b30094660d7525704ae86c2

Source class
Nvd cpe vulnerable target
Assertions
5
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
4c867556-752e-4af3-bd72-ca738d831d4251752d3f-3042-408a-b503-c9d72a10f766ca2e7e09-b5b3-4b68-a90f-3de32f795ad2df239788-24b2-4971-8d72-4d0faa23ca2be2901751-3543-4d94-8106-5e89c8d3211b
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
dcc1deb6-4211-4f89-9524-574296b9cafb

Assessments

CVSS by origin

8.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.