LiveActive security incident?Get immediate response
CVE Record

CVE-2019-4450: IBM i 7.2, 7.3, and 7.4 for i is vulnerable to cross-site scripting.

IBM i 7.2, 7.3, and 7.4 for i 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: 163492.

MediumCVSS 6.1Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM i releases 7.2, 7.3, and 7.4 contain a Web UI cross-site scripting issue. An attacker could get JavaScript to run in a trusted user session, potentially exposing credentials or changing what the user sees. This is a medium-severity issue, but it matters where administrators use the affected interface.

Executive priority

Prioritize remediation on internet-reachable or administrator-facing IBM i Web UI systems. The issue is not rated critical, but credential exposure in trusted sessions can affect core business systems. Handle through normal vulnerability SLAs unless exposure is broad or privileged use is high.

Technical view

CVE-2019-4450 is an IBM i Web UI XSS vulnerability with CVSS 3.0 score 6.1. The vector indicates network attackability, low complexity, no privileges required, required user interaction, changed scope, and low confidentiality and integrity impact. IBM X-Force tracks it as ID 163492.

Likely exposure

Exposure is limited to IBM i 7.2, 7.3, and 7.4 environments using the affected Web UI. Risk is higher if the interface is reachable from untrusted networks or used by privileged administrators. The supplied sources do not identify a specific endpoint or parameter.

Exploitation context

The CVSS vector lists exploit maturity as high, but the bundle does not show CISA KEV listing or a cited source confirming active exploitation. Treat this as plausibly exploitable XSS requiring user interaction, not as confirmed active exploitation.

Researcher notes

The public bundle confirms affected IBM i versions and XSS impact but lacks endpoint, parameter, and patch identifiers. Avoid assuming exploit technique or active campaigns. Validation should focus on asset versioning, Web UI exposure, and IBM advisory remediation status.

Mitigation direction

  • Review IBM advisory node 1100085 for the official remediation and affected release details.
  • Apply IBM-supported fixes or PTFs after confirming version and maintenance level.
  • Restrict Web UI access to trusted administrative networks where operationally possible.
  • Reduce privileged Web UI use from general browsing environments.
  • Monitor IBM and X-Force pages for updated remediation guidance.

Validation and detection

  • Inventory IBM i systems and confirm whether versions 7.2, 7.3, or 7.4 are present.
  • Check whether the affected Web UI is enabled and reachable by users or external networks.
  • Verify applied IBM fixes or PTF levels against the IBM advisory.
  • Review access logs for suspicious Web UI activity or unexpected script-like input.
  • Confirm administrators use patched systems for credential-sensitive workflows.
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-2019-4450 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
6.1 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/A:N/C:L/AC:L/AV:N/S:C/PR:N/UI:R/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
6.1CVSS 3.0MediumCVSS:3.0/A:N/C:L/AC:L/AV:N/S:C/PR:N/UI:R/I:L/RC:C/E:H/RL:O2.82.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

6.1Medium
CVSS 3.0 vector shape for CVE-2019-4450Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/A:N/C:L/AC:L/AV:N/S:C/PR:N/UI:R/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
IBMi7.2, 7.3, 7.4Listed
Weakness

CWE details

No CWE listed

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