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CVE Record

CVE-2021-20524: IBM Security Verify Access Docker 10.0.0 is vulnerable to cross-site scripting.

IBM Security Verify Access Docker 10.0.0 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: 198661.

MediumCVSS 4.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

IBM Security Verify Access Docker 10.0.0 has a Web UI cross-site scripting flaw. An attacker with high privileges and user interaction could inject JavaScript that changes trusted-session behavior and may expose credentials. This is not a broad unauthenticated takeover issue based on the supplied CVSS data.

Executive priority

Treat as a moderate-priority administrative interface risk. Address during normal vulnerability remediation cycles, faster if the Web UI is broadly reachable or used by many privileged administrators.

Technical view

The issue is XSS in the IBM Security Verify Access Docker 10.0.0 Web UI. CVSS 3.0 is 4.8 with network attack vector, low complexity, high privileges required, user interaction required, changed scope, low confidentiality and integrity impact, and no availability impact.

Likely exposure

Exposure appears limited to organizations running IBM Security Verify Access Docker version 10.0.0, particularly where the Web UI is reachable by privileged users. The supplied sources do not identify other affected versions or products.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires high privileges and user interaction according to the CVSS vector, reducing likelihood but not eliminating risk in administrative environments.

Researcher notes

Do not assume unauthenticated exploitability. The available evidence only supports XSS in the Web UI for version 10.0.0, with PR:H and UI:R. The bundle does not state stored versus reflected behavior or provide affected CPEs.

Mitigation direction

  • Check IBM support notice 6471895 for the official fix or workaround.
  • Identify and prioritize any IBM Security Verify Access Docker 10.0.0 deployments.
  • Limit Web UI access to trusted administrative networks and users.
  • Monitor privileged Web UI sessions for suspicious script-driven behavior.

Validation and detection

  • Inventory IBM Security Verify Access Docker versions in production and non-production.
  • Confirm whether version 10.0.0 is deployed anywhere.
  • Review Web UI access paths and privileged user exposure.
  • Verify remediation status against IBM advisory and X-Force entry.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-20524 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
Medium
CVSS
4.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/UI:R/C:L/PR:H/I:L/S:C/AV:N/A:N/AC:L/E:U/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
4.8CVSS 3.0MediumCVSS:3.0/UI:R/C:L/PR:H/I:L/S:C/AV:N/A:N/AC:L/E:U/RL:O/RC:C1.72.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

4.8Medium
CVSS 3.0 vector shape for CVE-2021-20524Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/UI:R/C:L/PR:H/I:L/S:C/AV:N/A:N/AC:L/E:U/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
IBMSecurity Verify Access Docker10.0.0Listed
Weakness

CWE details

No CWE listed

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