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CVE Record

CVE-2021-23450: Prototype Pollution

All versions of package dojo are vulnerable to Prototype Pollution via the setObject function.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-23450 is a prototype pollution issue in the dojo package. If an application exposes affected dojo behavior to untrusted input, attackers may be able to corrupt shared JavaScript object behavior and cause denial of service. The bundle does not show confirmed active exploitation.

Executive priority

Treat as high priority for dependency owners, especially where dojo is embedded in public-facing systems. Prioritize inventory and vendor updates before deeper code review.

Technical view

The reported flaw affects all versions of the dojo package via the setObject function. The CVSS 3.1 score is 7.5, network reachable, low complexity, no privileges, no user interaction, with high availability impact and no stated confidentiality or integrity impact.

Likely exposure

Exposure is most likely in applications that directly depend on dojo or package it through WebJars, Debian packages, or Oracle products referenced by vendor advisories. Reachability depends on whether attacker-controlled values can influence setObject usage.

Exploitation context

No source in the bundle states active exploitation, and KEV is false. Public advisories from Snyk, Oracle, and Debian indicate supply-chain relevance, but this bundle does not provide exploit telemetry or a confirmed weaponized campaign.

Researcher notes

The source bundle identifies prototype pollution through setObject but does not include a CVE CWE mapping, fixed version details, or exploit-in-the-wild evidence. Validate package lineage carefully across npm, WebJars, distro, and vendor-product packaging.

Mitigation direction

  • Inventory dojo, WebJars dojo, Debian dojo, and Oracle-bundled usage.
  • Apply Debian and Oracle security updates where those distributions are in use.
  • Check Snyk and vendor advisories for current fixed-version guidance.
  • Remove or replace dojo where no supported patched path is available.
  • Restrict untrusted input from reaching dojo object-path utilities.

Validation and detection

  • Run dependency scanning for npm dojo and listed WebJars coordinates.
  • Check SBOMs and lockfiles for dojo transitive dependencies.
  • Review code paths using dojo setObject with external input.
  • Confirm deployed images include relevant Debian or Oracle security updates.
  • Document whether the vulnerable function is reachable in production.
Prepared
Confidence
medium
Sources
11

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.

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CVE-2021-23450 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
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

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

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
10Source 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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-23450Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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/adojo0Listed
Weakness

CWE details

No CWE listed

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