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CVE Record

CVE-2021-36032: Magento Commerce Improper Input Validation Could Lead To Information Exposure and Privilege Escalation

Magento Commerce versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an improper input validation vulnerability. An authenticated attacker can trigger an insecure direct object reference in the `V1/customers/me` endpoint to achieve information exposure and privilege escalation.

HighCVSS 8.3Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This Magento Commerce flaw could let a logged-in attacker access customer-related information they should not see and potentially gain higher privileges. The issue is serious because ecommerce platforms hold sensitive account and order data, but the provided sources do not show active exploitation.

Executive priority

Treat this as a high-priority ecommerce platform update. It requires authentication, but customer accounts are often easy to obtain, and the potential impact includes sensitive data exposure and privilege escalation.

Technical view

CVE-2021-36032 is improper input validation in Magento Commerce affecting 2.4.2 and earlier, 2.4.2-p1 and earlier, and 2.3.7 and earlier. An authenticated attacker can trigger an IDOR in the V1/customers/me endpoint, causing information exposure and privilege escalation. CVSS 3.1 score is 8.3.

Likely exposure

Exposure is most likely on internet-facing Magento Commerce deployments running the affected versions with customer API functionality reachable by authenticated users. The source bundle does not provide CPEs, deployment prerequisites beyond authentication, or affected configuration details.

Exploitation context

The CVE is not listed as KEV in the supplied bundle. No cited source in the bundle states active exploitation. The CVSS vector indicates network attack, low complexity, low privileges, no user interaction, and high confidentiality and integrity impact.

Researcher notes

Evidence is limited to CVE metadata and Adobe’s bulletin reference. The bundle identifies CWE-20 and an IDOR in V1/customers/me, but does not provide exploit details, fixed version numbers, or proof of exploitation. Validate exposure through version inventory and authorized authorization testing.

Mitigation direction

  • Check Adobe APSB21-64 for the vendor-provided security update path.
  • Upgrade affected Magento Commerce instances to a vendor-supported fixed version.
  • Prioritize externally reachable storefronts and customer API surfaces.
  • Review access controls around customer account API endpoints.
  • Increase monitoring for customer account and privilege anomalies.

Validation and detection

  • Inventory Magento Commerce versions across production, staging, and backup environments.
  • Flag versions 2.4.2, 2.4.2-p1, 2.3.7, and earlier as affected.
  • Confirm remediation through vendor version evidence, not banner text alone.
  • Review logs for unusual authenticated access to V1/customers/me.
  • Run regression tests for customer account and API authorization behavior.
Prepared
Confidence
high
Sources
3

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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cwe · low confidence lookup

CWE-20: Exact CWE lookup

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description · low confidence lookup

Privilege behavior lookup

The CVE wording references privilege impact, so privilege escalation and authorization behavior 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-2021-36032 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
8.3 (3.1)
Known Exploited
No
Published

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

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
2Source 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
8.3CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L2.85.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

8.3High
CVSS 3.1 vector shape for CVE-2021-36032Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
AdobeMagento Commerceunspecified, unspecified, unspecified, unspecifiedListed
Weakness

CWE details

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