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confluence_data_center

Vendor: atlassian

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Actively Exploited 8 CISA KEV List
PoC / Exploits 9 Code Available
Total RCEs 13 Remote Access
Total CVEs 55 Total Indexed
Avg. EPSS 24.87% Exploit Prob.
Latest CVE CVE-2026-21589 Oct 05

Security Vulnerability Index

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7.8 CVSS
CVE-2021-43940

Affected versions of Atlassian Confluence Server and Data Center allow authenticated local attackers to achieve elevated privileges on the local system via a DLL Hijacking vulnerability in the Confluence installer. This vulnerability only affects installations of Confluence Server and Data Center on Windows. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.

EPSS: 0.33%
Critical Target
9.8 CVSS
CVE-2021-26084
RCE Exploit Found

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: 100.00%
Critical Target
5.3 CVSS
CVE-2021-26085
Exploit Found

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read vulnerability in the /s/ endpoint. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.

EPSS: 99.94%
5.4 CVSS
CVE-2020-29444

Affected versions of Team Calendar in Confluence Server before 7.11.0 allow attackers to inject arbitrary HTML or Javascript via a Cross Site Scripting Vulnerability in admin global setting parameters.

EPSS: 0.93%
4.3 CVSS
CVE-2021-26072

The WidgetConnector plugin in Confluence Server and Confluence Data Center before version 5.8.6 allowed remote attackers to manipulate the content of internal network resources via a blind Server-Side Request Forgery (SSRF) vulnerability.

EPSS: 41.22%
5.3 CVSS
CVE-2020-29448

The ConfluenceResourceDownloadRewriteRule class in Confluence Server and Confluence Data Center before version 6.13.18, from 6.14.0 before 7.4.6, and from 7.5.0 before 7.8.3 allowed unauthenticated remote attackers to read arbitrary files within WEB-INF and META-INF directories via an incorrect path access check.

EPSS: 2.58%
6.5 CVSS
CVE-2020-29450
RCE

Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the avatar upload feature. The affected versions are before version 7.2.0.

EPSS: 2.24%
5.4 CVSS
CVE-2020-14175

Affected versions of Atlassian Confluence Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in user macro parameters. The affected versions are before version 7.4.2, and from version 7.5.0 before 7.5.2.

EPSS: 1.15%
5.4 CVSS
CVE-2018-20239

Application Links before version 5.0.11, from version 5.1.0 before 5.2.10, from version 5.3.0 before 5.3.6, from version 5.4.0 before 5.4.12, and from version 6.0.0 before 6.0.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the applinkStartingUrl parameter. The product is used as a plugin in various Atlassian products where the following are affected: Confluence before version 6.15.2, Crucible before version 4.7.0, Crowd before version 3.4.3, Fisheye before version 4.7.0, Jira before version 7.13.3 and 8.x before 8.1.0.

EPSS: 3.34%
6.5 CVSS
CVE-2018-20237

Atlassian Confluence Server and Data Center before version 6.13.1 allows an authenticated user to download a deleted page via the word export feature.

EPSS: 1.74%