PT-2021-16939 · Atlassian · Widgetconnector+1

CVE-2021-26072 · Published 2021-04-01 · Updated 2025-10-30

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Confluence Server versions prior to 5.8.6 Confluence Data Center versions prior to 5.8.6

Description The issue allows remote attackers to manipulate the content of internal network resources via a blind Server-Side Request Forgery (SSRF) vulnerability. This is related to the WidgetConnector plugin.

Recommendations For Confluence Server versions prior to 5.8.6, update to version 5.8.6 or later. For Confluence Data Center versions prior to 5.8.6, update to version 5.8.6 or later.

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2021-26072

Affected Products

Confluence

Widgetconnector

References · 6

• https://jira.atlassian.com/browse/CONFSERVER-61399 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-26072 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-26072 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26072 · Security Note
• https://twitter.com/pdnuclei_bot/status/1975924197806543326 · Twitter Post
• https://twitter.com/ET_Labs/status/1984001336808239347 · Twitter Post