CVE-2021-26072
MEDIUM EXPLOITED NUCLEIConfluence Server and Data Center < 5.8.6 - Server-Side Request Forgery via WidgetConnector
Title source: llmExploitation Summary
CVE-2021-26072 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.
Description
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.
Nuclei Templates (1)
Atlassian Confluence < 5.8.6 - Server-Side Request Forgery
MEDIUMVERIFIEDby TechbrunchFR
Shodan:
http.component:"Atlassian Confluence"
References (1)
Core 1
Core References
Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://jira.atlassian.com/browse/CONFSERVER-61399
Scores
CVSS v3
4.3
EPSS
0.3885
EPSS Percentile
98.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Details
VulnCheck KEV
2025-11-05
CWE
CWE-918
Status
published
Products (2)
atlassian/confluence_data_center
< 5.8.6
atlassian/confluence_server
< 5.8.6
Published
Apr 01, 2021
Tracked Since
Feb 18, 2026