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CVE Record

CVE-2020-4886: IBM InfoSphere Information Server 11.7 stores sensitive information in the browser's history that could be...

IBM InfoSphere Information Server 11.7 stores sensitive information in the browser's history that could be obtained by a user who has access to the same system. IBM X-Force ID: 190910.

MediumCVSS 4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM InfoSphere Information Server 11.7 may leave sensitive information in a user's browser history. The main risk is local exposure: someone with access to the same computer or browser profile could recover information that should not persist there.

Executive priority

Treat this as a medium-priority confidentiality issue. It is unlikely to drive internet-scale compromise, but it matters where InfoSphere handles sensitive business data or where administrators use shared or weakly controlled endpoints.

Technical view

CVE-2020-4886 is an information disclosure issue in IBM InfoSphere Information Server 11.7. The CVSS 3.0 score is 4.0, with local attack vector, low complexity, no user interaction, low confidentiality impact, and no integrity impact reported.

Likely exposure

Organizations are exposed if they use IBM InfoSphere Information Server 11.7 and users access it from shared workstations, shared browser profiles, unmanaged endpoints, or systems where local users can inspect browser history.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The vulnerability requires access to the same local system or browser profile, so it is more relevant to insider, shared-device, or compromised-endpoint scenarios.

Researcher notes

Evidence is limited to the CVE description, IBM reference, and IBM X-Force entry. No CWE is listed in the bundle. Do not assume broader versions, remote exploitability, or active exploitation without additional vendor evidence.

Mitigation direction

  • Review IBM advisory guidance for CVE-2020-4886.
  • Apply IBM-recommended fixes or updates for affected 11.7 deployments.
  • Avoid shared browser profiles for InfoSphere access.
  • Clear browser history after sensitive InfoSphere workflows.
  • Restrict local access to endpoints used for InfoSphere administration.

Validation and detection

  • Inventory IBM InfoSphere Information Server 11.7 installations.
  • Confirm remediation status against IBM advisory node 6366715.
  • Test with a non-production account for sensitive data in browser history.
  • Review shared workstation and browser-profile usage.
  • Verify browser history no longer retains sensitive values after remediation.
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-2020-4886 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/PR:N/A:N/AV:L/AC:L/S:U/UI:N/C:L/I:N/E:U/RC:C/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
4CVSS 3.0MediumCVSS:3.0/PR:N/A:N/AV:L/AC:L/S:U/UI:N/C:L/I:N/E:U/RC:C/RL:O2.51.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4Medium
CVSS 3.0 vector shape for CVE-2020-4886Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/PR:N/A:N/AV:L/AC:L/S:U/UI:N/C:L/I:N/E:U/RC:C/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
IBMInfoSphere Information Server11.7Listed
Weakness

CWE details

No CWE listed

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