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Cors Misconfiguration CVE-2024-21382

MEDIUM
Permissive Cross-domain Security Policy with Untrusted Domains (CWE-942)
2024-01-26 secure@microsoft.com
4.3
CVSS 3.1 · Vendor: microsoft
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A02:2025 - Security Misconfiguration
ASVS 5.0
V13 - Configuration CORS policy restriction
Impact

CVSS score of 4.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.9% exploitation probability (EPSS)

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AnalysisAI

Microsoft Edge for Android Information Disclosure Vulnerability. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-942. Microsoft Edge for Android Information Disclosure Vulnerability Affected products include: Microsoft Edge Chromium.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (microsoft) PRIMARY 4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

DescriptionCVE.org

Microsoft Edge for Android Information Disclosure Vulnerability

Threat Intelligence Overview

EPSS Score
0.9%
Top 44% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.9%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

23
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +22
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)CVE.org

cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*
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9.3 Jul 15

Cross-origin data theft in LightRAG server versions prior to 1.5.4 allows any malicious website to make authenticated, c

CVE-2024-41657 HIGH POC
8.8 Aug 20

Casdoor is a UI-first Identity and Access Management (IAM) / Single-Sign-On (SSO) platform. Rated high severity (CVSS 8.

CVE-2021-34435 HIGH POC
8.8 Sep 01

In Eclipse Theia 0.3.9 to 1.8.1, the "mini-browser" extension allows a user to preview HTML files in an iframe inside th

CVE-2026-84452 HIGH POC
8.6 Sep 02

Unauthenticated cross-origin RCE in Windows ML CLI (winml-cli < 0.4.0) is reachable when a developer runs the `serve` co

CVE-2025-30354 HIGH POC
8.7 Apr 01

Bruno is an open source IDE for exploring and testing APIs. Rated high severity (CVSS 8.7), this vulnerability is no aut

CVE-2024-41659 HIGH POC
8.1 Aug 20

memos is a privacy-first, lightweight note-taking service. Rated high severity (CVSS 8.1), this vulnerability is remotel

CVE-2026-70604 HIGH POC
7.4 Aug 05

Cross-origin read bypass in Electron's custom protocol handler exposes sensitive application data to remote pages via fe

CVE-2026-15966 CRITICAL
9.8 Jul 23

Information disclosure in Progress MOVEit Transfer (all versions before 2025.1.5, and 2026.0.0 before 2026.0.3) stems fr

CVE-2025-61163 CRITICAL
9.8 Aug 26

Sensitive-data exposure in Cohere North AI v1.1.5 stems from the server accepting cross-origin requests without validati

CVE-2024-37131 CRITICAL
9.8 Jun 13

SCG Policy Manager, all versions, contains an overly permissive Cross-Origin Resource Policy (CORP) vulnerability. Rated

CVE-2022-26969 CRITICAL
9.8 Dec 26

In Directus before 9.7.0, the default settings of CORS_ORIGIN and CORS_ENABLED are true. Rated critical severity (CVSS 9

CVE-2022-31736 CRITICAL
9.8 Dec 22

A malicious website could have learned the size of a cross-origin resource that supported Range requests. Rated critical

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