CVE-2021-26084

KEV
Published: Ago 30, 2021 Last Modified: Ott 24, 2025
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,9444
Percentile
1,0th
Updated

EPSS Score Trend (Last 90 Days)

917

Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity
Potential Impacts:
Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Languages: Java
View CWE Details
Exploit

Confluence Server 7.12.4 - 'OGNL injection' Remote Code …

Confluence Server 7.12.4 - 'OGNL injection' Remote Code Execution (RCE) (Unauthenticated)

Author: Fellipe Oliveira Published:
View Exploit Code →
Application

Confluence Data Center by Atlassian

Product Information
Vendor Atlassian
Product Confluence Data Center
Version Range Affected
To 6.13.23 (exclusive)
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Server by Atlassian

Product Information
Vendor Atlassian
Product Confluence Server
Version Range Affected
To 6.13.23 (exclusive)
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Server by Atlassian

Product Information
Vendor Atlassian
Product Confluence Server
Version Range Affected
From 7.12.0 (inclusive)
To 7.12.5 (exclusive)
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Server by Atlassian

Product Information
Vendor Atlassian
Product Confluence Server
Version Range Affected
From 7.5.0 (inclusive)
To 7.11.6 (exclusive)
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Data Center by Atlassian

Product Information
Vendor Atlassian
Product Confluence Data Center
Version Range Affected
From 7.12.0 (inclusive)
To 7.12.5 (exclusive)
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Data Center by Atlassian

Product Information
Vendor Atlassian
Product Confluence Data Center
Version Range Affected
From 7.5.0 (inclusive)
To 7.11.6 (exclusive)
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Server by Atlassian

Product Information
Vendor Atlassian
Product Confluence Server
Version Range Affected
From 6.14.0 (inclusive)
To 7.4.11 (exclusive)
cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Confluence Data Center by Atlassian

Product Information
Vendor Atlassian
Product Confluence Data Center
Version Range Affected
From 6.14.0 (inclusive)
To 7.4.11 (exclusive)
cpe:2.3:a:atlassian:confluence_data_center:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021…
http://packetstormsecurity.com/files/167449/Atlassian-Confl…
http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL…
https://jira.atlassian.com/browse/CONFSERVER-67940
https://jira.atlassian.com/browse/CONFSERVER-67940
http://packetstormsecurity.com/files/167449/Atlassian-Confl…
http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL…
https://jira.atlassian.com/browse/CONFSERVER-67940
https://jira.atlassian.com/browse/CONFSERVER-67940