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CVE Record

CVE-2021-23472: Cross-site Scripting (XSS)

This affects versions before 1.19.1 of package bootstrap-table. A type confusion vulnerability can lead to a bypass of input sanitization when the input provided to the escapeHTML function is an array (instead of a string) even if the escape attribute is set.

LowCVSS 3.1Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2021-23472 is a low-severity XSS issue in bootstrap-table before 1.19.1. If an application passes array input where the library expected text, sanitization may be bypassed even when escaping is enabled. Business urgency is generally low, but teams should remove affected versions where untrusted table data is rendered to users.

Executive priority

Treat as routine remediation unless the product displays untrusted user content in bootstrap-table views. Prioritize alongside dependency hygiene work, not as an emergency response, because severity is low and active exploitation is not evidenced in the supplied sources.

Technical view

The issue is type confusion in bootstrap-table's escapeHTML handling: array input can bypass escaping despite the escape attribute. CVSS v3.1 is 3.1 with network attack vector, high complexity, no privileges, and user interaction required. The only named affected product is bootstrap-table below 1.19.1.

Likely exposure

Exposure is most likely in web applications using bootstrap-table below 1.19.1 to display attacker-influenced table content. Java projects may inherit exposure through referenced WebJars packages. Systems not using bootstrap-table, or only rendering trusted static table data, are less likely affected.

Exploitation context

The bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires user interaction and a specific data-shape condition where array input reaches escaping logic. Potential impact is limited to confidentiality loss according to the supplied CVSS vector.

Researcher notes

Key validation hinges on data flow, not only dependency presence. Focus on whether array-typed, attacker-controlled values can reach bootstrap-table rendering with escapeHTML expectations. The source bundle provides limited vulnerability detail and does not include exploit status beyond KEV=false.

Mitigation direction

  • Upgrade bootstrap-table to version 1.19.1 or later.
  • Update WebJars or packaged bootstrap-table dependencies where present.
  • Check vendor and package-manager advisories before release.
  • Avoid passing untrusted array values into table-rendered HTML fields.
  • Keep escaping enabled and validate table data types server-side.

Validation and detection

  • Review package manifests, lockfiles, and SBOMs for bootstrap-table below 1.19.1.
  • Check Java dependencies for referenced WebJars bootstrap-table packages.
  • Inventory routes that render user-controlled data through bootstrap-table.
  • Confirm upgraded builds resolve the vulnerable dependency version.
  • Regression-test affected table views for safe rendering behavior.
Prepared
Confidence
high
Sources
6

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-2021-23472 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
Low
CVSS
3.1 (3.1)
Known Exploited
No
Published

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

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
8Source 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
3.1CVSS 3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N1.61.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.1Low
CVSS 3.1 vector shape for CVE-2021-23472Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
n/abootstrap-table<1.19.1Listed
Weakness

CWE details

No CWE listed

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