LiveActive security incident?Get immediate response
CVE Record

CVE-2023-37203: Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed a...

Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files. This could have been leveraged to execute arbitrary code. This vulnerability affects Firefox < 115.

HighCVSS 7.8Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2023-37203 is a Firefox flaw where a user could be socially engineered through drag-and-drop behavior into creating a shortcut to local system files. Mozilla says this could be leveraged for arbitrary code execution. The issue affects Firefox versions before 115.

Executive priority

Treat this as a high-priority browser patching issue for desktop fleets. It is not documented as actively exploited in the provided sources, but successful abuse could lead to code execution after user interaction.

Technical view

Mozilla describes insufficient validation in Firefox's Drag and Drop API. With user interaction and social engineering, an attacker may have caused creation of a local-file shortcut and then leveraged that condition for code execution. The CVSS 3.1 score is 7.8 high with confidentiality, integrity, and availability impact marked high.

Likely exposure

Exposure is limited to systems running Firefox before version 115. The most likely affected assets are user workstations, VDI images, and unmanaged endpoints where browser patching is delayed.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. Exploitation requires user interaction and social engineering, which reduces automation but still matters because browser users routinely handle untrusted web content.

Researcher notes

Evidence is strongest for Firefox before 115 and Mozilla's stated Drag and Drop validation failure. The provided CVE data does not list CWEs, public exploit status, or affected products beyond Firefox. Avoid assuming impact for Firefox ESR, Thunderbird, or other Mozilla products without separate source confirmation.

Mitigation direction

  • Update Firefox to version 115 or later according to Mozilla guidance.
  • Use OS or enterprise browser management to enforce Firefox updates.
  • Identify and retire unmanaged Firefox installations below version 115.
  • Review Gentoo advisory guidance if using Gentoo-packaged Firefox.
  • Warn users against drag-and-drop actions from untrusted web content.

Validation and detection

  • Inventory Firefox versions across workstations and VDI images.
  • Confirm no managed endpoints run Firefox below version 115.
  • Check patch deployment logs for successful Firefox update installation.
  • Review vulnerability scanner results for CVE-2023-37203 closure.
  • Validate Gentoo systems against GLSA 202401-10 if applicable.
Prepared
Confidence
high
Sources
5

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

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. 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-2023-37203 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

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

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
4Source 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
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2023-37203Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
MozillaFirefoxunspecifiedListed
Weakness

CWE details

No CWE listed

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