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CVE Record

CVE-2021-39040: IBM Planning Analytics Workspace 2.0 could be vulnerable to malicious file upload by not validating the fil...

IBM Planning Analytics Workspace 2.0 could be vulnerable to malicious file upload by not validating the file types or sizes. Attackers can make use of this weakness and upload malicious executable files into the system and it can be sent to victim for performing further attacks. IBM X-Force ID: 214025.

MediumCVSS 6.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Planning Analytics Workspace 2.0 may allow a logged-in attacker to upload unsafe executable files because file type or size checks are insufficient. The main business risk is follow-on compromise if a victim opens or receives the malicious file through the system.

Executive priority

Treat as a moderate remediation item for affected IBM Planning Analytics environments. Prioritize if the workspace is internet-facing, broadly accessible, or used to exchange files with many users.

Technical view

The vulnerability is a malicious file upload issue in IBM Planning Analytics Workspace 2.0. The CVSS vector indicates network access, low privileges, low attack complexity, required user interaction, low confidentiality impact, high integrity impact, and no availability impact.

Likely exposure

Exposure is most likely where IBM Planning Analytics Workspace 2.0 is deployed and reachable by users who can upload or share files. The source bundle does not identify other affected versions or products.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation. The CVSS exploit maturity is listed as unproven, and exploitation requires low privileges plus victim interaction.

Researcher notes

Key uncertainty is remediation detail: the provided bundle points to IBM guidance but does not name a fixed version. Do not expand scope beyond IBM Planning Analytics Workspace 2.0 without vendor evidence.

Mitigation direction

  • Check IBM advisory 6574003 for the official remediation path.
  • Apply IBM's official fix or upgrade guidance for affected Workspace 2.0 deployments.
  • Limit upload capabilities to trusted users until remediation is confirmed.
  • Monitor uploaded content for unexpected executable or oversized files.
  • Review sharing workflows that could deliver uploaded files to victims.

Validation and detection

  • Inventory IBM Planning Analytics Workspace versions in production and test environments.
  • Confirm whether version 2.0 is present and in scope.
  • Review IBM X-Force ID 214025 against internal vulnerability records.
  • Verify file upload controls enforce approved types and size limits.
  • Check logs for suspicious uploads or unusual file-sharing activity.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-39040 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.3 (3.0)
Known Exploited
No
Published

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

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
6.3CVSS 3.0MediumCVSS:3.0/I:H/UI:R/A:N/C:L/AV:N/AC:L/PR:L/S:U/RC:C/RL:O/E:U2.14.2Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.3Medium
CVSS 3.0 vector shape for CVE-2021-39040Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMPlanning Analytics Workspace2.0Listed
Weakness

CWE details

No CWE listed

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