What is the CVSS score of CVE-2024-21703?

CVE-2024-21703 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Confluence Data Center CVE-2024-21703

MEDIUM

Incorrect Permission Assignment for Critical Resource (CWE-732)

2024-11-27 security@atlassian.com

Information Disclosure Microsoft Atlassian Confluence Data Center Confluence Server

6.4

CVSS 3.1 · Vendor: atlassian

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Vulnerability Assessment

Weakness	CWE CWE-732 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V13 - Configuration Permission assignment review
Impact	CVSS score of 6.4 (MEDIUM). Attack characteristics: local attack vector, high complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived	A local attacker with access to the system could access resources due to misconfigured permissions.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAI

This Medium severity Security Misconfiguration vulnerability was introduced in version 8.8.1 of Confluence Data Center and Server for Windows installations. Rated medium severity (CVSS 6.4). No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and restrict file/resource permissions, apply principle of least privilege.

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Technical ContextAI · show details

This vulnerability is classified as Incorrect Permission Assignment (CWE-732), which allows attackers to access resources due to misconfigured permissions. This Medium severity Security Misconfiguration vulnerability was introduced in version 8.8.1 of Confluence Data Center and Server for Windows installations. This Security Misconfiguration vulnerability, with a CVSS Score of 6.4 allows an authenticated attacker of the Windows host to read sensitive information about the Confluence Data Center configuration which has high impact to confidentiality, high impact to integrity, high impact to availability, and no user interaction. Atlassian recommends that Confluence Data Center and Server customers upgrade to the latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: * Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.18 * Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.5 * Confluence Data Center and Server 8.7: Upgrade to a release greater than or equal to 8.7.2 * Confluence Data Center and Server 8.8: Upgrade to a release greater than or equal to 8.8.0 See the release notes (https://confluence.atlassian.com/conf88/confluence-release-notes-1354501008.html ). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives ). This vulnerability was reported via our Atlassian Bug Bounty Program by Chris Elliot. Affected products include: Atlassian Confluence Data Center, Atlassian Confluence Server. Version information: version 8.8.1.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (atlassian) PRIMARY 6.4 MEDIUM

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

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

CVSS VectorVendor: atlassian

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

This Medium severity Security Misconfiguration vulnerability was introduced in version 8.8.1 of Confluence Data Center and Server for Windows installations.

This Security Misconfiguration vulnerability, with a CVSS Score of 6.4 allows an authenticated attacker of the Windows host to read sensitive information about the Confluence Data Center configuration which has high impact to confidentiality, high impact to integrity, high impact to availability, and no user interaction.

Atlassian recommends that Confluence Data Center and Server customers upgrade to the latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:

Confluence Data Center and Server 7.19: Upgrade to a release greater than or equal to 7.19.18
Confluence Data Center and Server 8.5: Upgrade to a release greater than or equal to 8.5.5
Confluence Data Center and Server 8.7: Upgrade to a release greater than or equal to 8.7.2
Confluence Data Center and Server 8.8: Upgrade to a release greater than or equal to 8.8.0

See the release notes (https://confluence.atlassian.com/conf88/confluence-release-notes-1354501008.html ). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives ).

This vulnerability was reported via our Atlassian Bug Bounty Program by Chris Elliot.

Threat Intelligence Overview

EPSS Score

0.2%

Top 90% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

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 0.2%

Patch available No

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

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

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