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CVE Record

CVE-2020-4929: IBM QRadar SIEM 7.3 and 7.4 is vulnerable to cross-site scripting.

IBM QRadar SIEM 7.3 and 7.4 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: 191706.

MediumCVSS 5.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM QRadar SIEM 7.3 and 7.4 can allow a logged-in user to place JavaScript in the web UI. If another user interacts with affected content, the script could alter the interface or expose credentials within a trusted session. This is medium severity, but QRadar is security-critical infrastructure, so exposed consoles deserve prompt attention.

Executive priority

Treat this as a timely remediation item, not an emergency. Because QRadar supports security operations, prioritize affected internet-facing or broadly accessible consoles and complete vendor-guided updates during the next maintenance window.

Technical view

This is a cross-site scripting issue in the QRadar SIEM Web UI. The CVSS 3.0 vector is network-accessible, low complexity, low privileges required, and user interaction required, with changed scope and low confidentiality and integrity impact. The provided record lists CVSS 5.4 and IBM X-Force ID 191706.

Likely exposure

Exposure is limited to organizations running IBM QRadar SIEM 7.3 or 7.4. Risk is higher where the Web UI is reachable by many users or less-trusted networks. The provided sources do not identify other affected IBM products or versions.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. The CVSS temporal vector includes E:H, indicating high exploit-code maturity in the provided scoring, but the available evidence still requires user interaction and low privileges.

Researcher notes

The provided data supports an authenticated, user-interaction XSS in QRadar SIEM 7.3 and 7.4 with possible credential disclosure in a trusted session. The bundle lacks CWE mapping, detailed vulnerable parameters, patch identifiers, and confirmed exploitation evidence.

Mitigation direction

  • Review IBM advisory 6449674 and apply the vendor-provided remediation for QRadar SIEM 7.3 or 7.4.
  • Restrict QRadar Web UI access to trusted administrative networks and authenticated users.
  • Reduce unnecessary QRadar user privileges, especially accounts that can create or modify UI-visible content.
  • Monitor QRadar sessions and audit logs for suspicious UI changes or credential-related anomalies.

Validation and detection

  • Inventory QRadar SIEM instances and confirm whether versions 7.3 or 7.4 are present.
  • Check patch or fix status against IBM advisory 6449674 for every affected instance.
  • Confirm the Web UI is not exposed beyond intended administrative access paths.
  • Review QRadar user roles for low-privilege accounts with content-editing access.
  • Search security logs for suspicious browser-session activity affecting QRadar users.
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

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CVE-2020-4929 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.0)
Known Exploited
No
Published

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

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/A:N/S:C/I:L/AV:N/C:L/PR:L/UI:R/AC:L/E:H/RL:O/RC:C2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2020-4929Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMQRadar SIEM7.3, 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.