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CVE Record

CVE-2021-28827: TIBCO Administrator Stored Cross Site Scripting vulnerability

The Administration GUI component of TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric, TIBCO Administrator - Enterprise Edition for z/Linux, TIBCO Administrator - Enterprise Edition for z/Linux, TIBCO Runtime Agent, TIBCO Runtime Agent, TIBCO Runtime Agent for z/Linux, and TIBCO Runtime Agent for z/Linux contains an easily exploitable vulnerability that allows an unauthenticated attacker to social engineer a legitimate user with network access to execute a Stored XSS attack targeting the affected system. A successful attack using this vulnerability requires human interaction from a person other than the attacker. Affected releases are TIBCO Software Inc.'s TIBCO Administrator - Enterprise Edition: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric: versions 5.11.0 and 5.11.1, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.10.2 and below, TIBCO Administrator - Enterprise Edition for z/Linux: versions 5.11.0 and 5.11.1, TIBCO Runtime Agent: versions 5.10.2 and below, TIBCO Runtime Agent: versions 5.11.0 and 5.11.1, TIBCO Runtime Agent for z/Linux: versions 5.10.2 and below, and TIBCO Runtime Agent for z/Linux: versions 5.11.0 and 5.11.1.

CriticalCVSS 9.6Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2021-28827 is a critical stored cross-site scripting issue in TIBCO Administrator’s Administration GUI. An unauthenticated attacker could trick a legitimate network-connected user into triggering malicious stored content. Impact could include compromise of confidentiality and integrity in the affected administration context, although the sources do not state active exploitation. Organizations are exposed if they run the affected TIBCO Administrator or Runtime Agent versions and the Administration GUI is reachable by legitimate users over the network. Internet exposure is not stated in the sources, so teams should verify actual network placement and access controls. Treat this as high-priority remediation for any exposed or business-critical TIBCO administration environment. The issue is critical by CVSS and targets administrative workflows, but urgency should be based on confirmed affected versions and GUI reachability. Mitigation focus: Review the TIBCO advisory for vendor-supported remediation and fixed-version guidance.; Prioritize upgrade or remediation for affected 5.10.2-and-below, 5.11.0, and 5.11.1 deployments.; Restrict Administration GUI access to trusted administrative networks and users..

Prepared

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

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CVE-2021-28827 mapping review

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.6 (3.1)
Known Exploited
No
Published

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

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
2Source 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
9.6CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:L2.86Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.6Critical
CVSS 3.1 vector shape for CVE-2021-28827Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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

Products and packages named in the record

VendorProductVersion / packageStatus
TIBCO Software Inc.TIBCO Administrator - Enterprise EditionunspecifiedListed
TIBCO Software Inc.TIBCO Administrator - Enterprise Edition5.11.0, 5.11.1Listed
TIBCO Software Inc.TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver FabricunspecifiedListed
TIBCO Software Inc.TIBCO Administrator - Enterprise Edition Distribution for TIBCO Silver Fabric5.11.0, 5.11.1Listed
TIBCO Software Inc.TIBCO Administrator - Enterprise Edition for z/LinuxunspecifiedListed
TIBCO Software Inc.TIBCO Administrator - Enterprise Edition for z/Linux5.11.0, 5.11.1Listed
TIBCO Software Inc.TIBCO Runtime AgentunspecifiedListed
TIBCO Software Inc.TIBCO Runtime Agent5.11.0, 5.11.1Listed
TIBCO Software Inc.TIBCO Runtime Agent for z/LinuxunspecifiedListed
TIBCO Software Inc.TIBCO Runtime Agent for z/Linux5.11.0, 5.11.1Listed
Weakness

CWE details

No CWE listed

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