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CVE-2021-37305: An Insecure Permissions issue in jeecg-boot 2.4.5 and earlier allows remote attackers to gain escalated pri...

An Insecure Permissions issue in jeecg-boot 2.4.5 and earlier allows remote attackers to gain escalated privilege and view sensitive information via api uri: /sys/user/querySysUser?username=admin.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This vulnerability concerns Jeecg-Boot 2.4.5 and earlier. The reported issue lets a remote, unauthenticated attacker access a user-query API for the admin account, exposing sensitive information and creating privilege-escalation risk. The source bundle does not identify a confirmed fixed version.

Executive priority

Treat this as a high-priority exposure review for any Jeecg-Boot deployment. Publicly reachable systems should be checked first because the reported weakness requires no attacker account and can expose sensitive user information.

Technical view

CVE-2021-37305 is an insecure permissions flaw, mapped to CWE-732. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, score 7.5. The described affected path is /sys/user/querySysUser?username=admin in Jeecg-Boot 2.4.5 and earlier.

Likely exposure

Exposure is most likely where Jeecg-Boot 2.4.5 or earlier is deployed with the affected API reachable over a network, especially internet-facing administrative or user-management services.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Risk remains meaningful because the issue is network reachable, requires no privileges or user interaction, and affects confidentiality.

Researcher notes

The public record names Jeecg-Boot 2.4.5 and earlier, but the structured affected-product fields are incomplete. The bundle provides one GitHub issue reference and no confirmed patch, workaround, or active-exploitation evidence.

Mitigation direction

  • Inventory Jeecg-Boot deployments and identify versions 2.4.5 or earlier.
  • Check upstream Jeecg-Boot guidance and release notes for a confirmed fixed version.
  • Restrict external access to user-management and administrative API routes.
  • Require authentication and authorization checks before user-query API responses.
  • Review logs for suspicious access to the reported API path.

Validation and detection

  • Confirm whether any reachable application runs Jeecg-Boot 2.4.5 or earlier.
  • Verify the user-query endpoint enforces authentication and authorization.
  • Review access logs for requests targeting the reported admin user-query path.
  • Check whether compensating controls block unauthenticated external access.
  • Document unresolved uncertainty if no vendor fix can be confirmed.
Prepared
Confidence
medium
Sources
3

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.

cwe · medium confidence lookup

CWE-732: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2021-37305 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:H/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
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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-37305Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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/an/an/aListed
Weakness

CWE details

CWE-732

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

CWE-732 · source CWE mapping

Incorrect Permission Assignment for Critical Resource

Incorrect Permission Assignment for Critical Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs