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CVE Record

CVE-2021-43048: TIBCO PartnerExpress Click-Jacking vulnerability

The Interior Server and Gateway Server components of TIBCO Software Inc.'s TIBCO PartnerExpress contain a vulnerability that theoretically allows an unauthenticated attacker with network access to execute a clickjacking attack on the affected system. A successful attack using this vulnerability does not require human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO PartnerExpress: versions 6.2.1 and below.

CriticalCVSS 9.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

TIBCO PartnerExpress versions 6.2.1 and below have a critical issue in Interior Server and Gateway Server components. The CVE describes a remote, unauthenticated clickjacking attack with high impact to confidentiality, integrity, and availability. The source bundle does not confirm active exploitation or provide patch details.

Executive priority

Treat this as urgent if TIBCO PartnerExpress is in use, particularly in partner-facing environments. The severity is critical, but urgency depends on confirming affected versions and network reachability. No active exploitation is confirmed in the provided sources.

Technical view

CVE-2021-43048 affects TIBCO PartnerExpress Interior Server and Gateway Server components. CVSS 3.1 is 9.8: network attack vector, low complexity, no privileges, no user interaction, unchanged scope, and high CIA impact. The record labels it clickjacking, which is unusual with UI:N; validate against vendor advisory.

Likely exposure

Exposure is limited to organizations running TIBCO PartnerExpress 6.2.1 or earlier, especially where Interior Server or Gateway Server interfaces are network-reachable. The bundle provides no CPEs or deployment-specific exposure indicators.

Exploitation context

The source bundle states the attack is unauthenticated and network-accessible. It does not show CISA KEV listing, public exploitation, exploit code, or confirmed in-the-wild activity. Treat exploitation status as unconfirmed.

Researcher notes

Key uncertainty: the CVE describes clickjacking but assigns UI:N and says no human interaction beyond the attacker. Do not infer mechanics beyond the record. Validate affected component exposure and rely on TIBCO advisory details for remediation specifics.

Mitigation direction

  • Identify any TIBCO PartnerExpress deployments at version 6.2.1 or below.
  • Review the TIBCO advisory for fixed versions, upgrade paths, or vendor workarounds.
  • Restrict network access to PartnerExpress server interfaces while remediation is pending.
  • Prioritize remediation for internet-facing or partner-facing deployments.

Validation and detection

  • Confirm installed TIBCO PartnerExpress versions across Interior Server and Gateway Server systems.
  • Check whether affected components are reachable from untrusted networks.
  • Review vendor advisory applicability against your exact release and deployment role.
  • Look for exposure evidence in asset inventory, firewall rules, and external attack surface scans.
Prepared
Confidence
medium
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.

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CVE-2021-43048 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
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2021-43048Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
TIBCO Software Inc.TIBCO PartnerExpressunspecifiedListed
Weakness

CWE details

No CWE listed

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