CASCACascade Atlas

Evidence dossier

CVE-2022-26138

CVE-2022-26138

84.3–99.3Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.

State
PUBLISHED
Published
Jul 20, 2022
Updated
Jan 12, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS98.17%

2026-07-18 · v2026.06.15 · percentile 99.9%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

atlassianoriginal assertion
container

The Atlassian Questions For Confluence app for Confluence Server and Data Center creates a Confluence user account in the confluence-users group with the username disabledsystemuser and a hardcoded password. A remote, unauthenticated attacker with knowledge of the hardcoded password could exploit this to log into Confluence and access all content accessible to users in the confluence-users group. This user account is created when installing versions 2.7.34, 2.7.35, and 3.0.2 of the app.

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.981700000000; percentile 0.999080000000

Applicability

Cited product scope

Trace impact →
AtlassianQuestions For Confluence
[{"status": "affected", "version": "2.7.34"}, {"status": "affected", "version": "2.7.35"}, {"status": "affected", "version": "3.0.2"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:atlassian:confluence_data_center:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:a:atlassian:confluence_server:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:a:atlassian:questions_for_confluence:2.7.34:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:atlassian:questions_for_confluence:2.7.35:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:atlassian:questions_for_confluence:3.0.2:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Limitations and unknowns

  • 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; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • 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.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.