Known Vulnerabilities for Confluence Server by Atlassian

Listed below are 10 of the newest known vulnerabilities associated with "Confluence Server" by "Atlassian".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-27825 MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to version 0.17.0,... Not Provided 2026-03-10 2026-03-10
CVE-2021-43940 Affected versions of Atlassian Confluence Server and Data Center allow authenticated local attackers to achieve elevated priv... 7.8 - HIGH 2022-02-15 2022-07-27
CVE-2021-39114 Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center... 8.8 - HIGH 2022-04-05 2022-07-12
CVE-2021-26085 Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization ... 5.3 - MEDIUM 2021-08-03 2023-08-08
CVE-2021-26084 In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthe... 9.8 - CRITICAL 2021-08-30 2023-08-08
CVE-2021-26072 The WidgetConnector plugin in Confluence Server and Confluence Data Center before version 5.8.6 allowed remote attackers to m... 4.3 - MEDIUM 2021-04-01 2022-07-27
CVE-2020-29448 The ConfluenceResourceDownloadRewriteRule class in Confluence Server and Confluence Data Center before version 6.13.18, from ... 5.3 - MEDIUM 2021-02-22 2022-07-27
CVE-2020-29445 Affected versions of Confluence Server before 7.4.8, and versions from 7.5.0 before 7.11.0 allow attackers to identify intern... 4.3 - MEDIUM 2021-05-07 2022-05-13
CVE-2020-29444 Affected versions of Team Calendar in Confluence Server before 7.11.0 allow attackers to inject arbitrary HTML or Javascript ... 5.4 - MEDIUM 2021-05-07 2022-07-27
CVE-2020-14175 Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScrip... 5.4 - MEDIUM 2020-07-24 2022-07-27
Results limited to 10 most recent vulnerabilities
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