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CVE Record

CVE-2020-4687: IBM Content Navigator 3.0.7 and 3.0.8 could allow an authenticated user to view cached content of another u...

IBM Content Navigator 3.0.7 and 3.0.8 could allow an authenticated user to view cached content of another user that they should not have access to. IBM X-Force ID: 186679.

MediumCVSS 4.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Content Navigator 3.0.7 and 3.0.8 could let a signed-in user see cached content belonging to another user. This is a confidentiality issue, not a system takeover. The business risk depends on whether exposed cached content contains sensitive documents or regulated data.

Executive priority

Prioritize remediation where IBM Content Navigator stores sensitive business, customer, legal, or regulated documents. This is not rated critical, but unauthorized document visibility can create confidentiality and compliance exposure.

Technical view

The CVE describes authenticated information disclosure in IBM Content Navigator 3.0.7 and 3.0.8. CVSS 3.0 score is 4.3 with network access, low complexity, low privileges, no user interaction, and confidentiality impact only. IBM X-Force tracks it as 186679.

Likely exposure

Exposure is limited to organizations running IBM Content Navigator 3.0.7 or 3.0.8 with authenticated users. The source bundle does not identify other IBM products, versions, deployment modes, or prerequisites beyond authentication.

Exploitation context

The bundle reports no CISA KEV listing and the CVSS exploit maturity is unproven. Treat this as a plausible authenticated data exposure risk, not as confirmed active exploitation.

Researcher notes

Evidence is concise: affected versions, CVSS vector, IBM advisory, and X-Force ID are provided. No CWE, exploit details, or detailed root cause are included in the bundle. Avoid expanding scope beyond Content Navigator 3.0.7 and 3.0.8.

Mitigation direction

  • Identify any IBM Content Navigator 3.0.7 or 3.0.8 deployments.
  • Review IBM advisory node 6262423 and X-Force 186679 for official remediation.
  • Apply IBM-provided fixes or upgrade guidance for affected versions.
  • Limit access to trusted authenticated users until remediation is complete.
  • Review cache/session handling guidance from IBM before operational changes.

Validation and detection

  • Confirm deployed IBM Content Navigator versions across production and non-production environments.
  • Check whether affected versions 3.0.7 or 3.0.8 remain in service.
  • Validate remediation status against IBM advisory and change records.
  • Review access logs for unusual authenticated access to cached content.
  • Confirm users cannot view cached content outside their authorization boundary.
Prepared
Confidence
high
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-4687 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.3 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:L/C:L/S:U/A:N/AV:N/UI:N/AC:L/I:N/RC:C/E:U/RL:O

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.3CVSS 3.0MediumCVSS:3.0/PR:L/C:L/S:U/A:N/AV:N/UI:N/AC:L/I:N/RC:C/E:U/RL:O2.81.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.3Medium
CVSS 3.0 vector shape for CVE-2020-4687Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:L/C:L/S:U/A:N/AV:N/UI:N/AC:L/I:N/RC:C/E:U/RL:O

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IBMContent Navigator3.0.7, 3.0.8Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.