LiveActive security incident?Get immediate response
CVE Record

CVE-2019-4663: IBM WebSphere Application Server - Liberty is vulnerable to cross-site scripting.

IBM WebSphere Application Server - Liberty is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 171245.

MediumCVSS 5.4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2019-4663 is a medium-severity XSS issue in IBM WebSphere Application Server Liberty. A user with low privileges and targeted user interaction could cause arbitrary JavaScript to run in the Web UI, potentially exposing credentials inside a trusted session. It matters most where Liberty web interfaces are reachable by internal users.

Executive priority

Prioritize remediation for internet-facing or broadly internal Liberty Web UI deployments. This is not a critical remote takeover based on the bundle, but credential exposure inside trusted sessions can support account compromise and follow-on access.

Technical view

The source describes a cross-site scripting flaw in the Liberty Web UI. CVSS 3.0 is 5.4, with network attack vector, low complexity, low privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact. IBM X-Force tracks it as ID 171245.

Likely exposure

Organizations running IBM WebSphere Application Server Liberty with the affected Web UI exposed to authenticated users are the likely exposure population. The bundle does not provide exact affected or fixed version ranges.

Exploitation context

The bundle does not indicate CISA KEV listing or active exploitation. IBM's CVSS data lists exploit maturity as high, but exploitation still requires low privileges and user interaction. Treat this as credible but not confirmed actively exploited from the provided evidence.

Researcher notes

Evidence is limited to the CVE description, IBM advisory reference, X-Force entry, and CVSS vector. Do not infer additional products, versions, endpoints, payloads, or active exploitation beyond those sources.

Mitigation direction

  • Review IBM advisory 1127367 for applicable Liberty fixed levels.
  • Apply IBM-supported updates or interim fixes where relevant.
  • Restrict Liberty Web UI access to trusted administrative networks.
  • Require strong authentication and session protections for Liberty administration.
  • Monitor vendor guidance if exact local version mapping is unclear.

Validation and detection

  • Inventory IBM WebSphere Application Server Liberty deployments.
  • Identify systems exposing the Liberty Web UI.
  • Compare installed Liberty levels against IBM advisory guidance.
  • Review access logs for unusual authenticated Web UI activity.
  • Confirm compensating access controls limit untrusted user reachability.
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.

cve · low confidence lookup

CVE-2019-4663 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/C:L/UI:R/PR:L/AV:N/S:C/AC:L/A:N/I:L/RC:C/E:H/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
5.4CVSS 3.0MediumCVSS:3.0/C:L/UI:R/PR:L/AV:N/S:C/AC:L/A:N/I:L/RC:C/E:H/RL:O2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2019-4663Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/C:L/UI:R/PR:L/AV:N/S:C/AC:L/A:N/I:L/RC:C/E:H/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
IBMWebSphere Application ServerLibertyListed
Weakness

CWE details

No CWE listed

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