Is CVE-2021-26072 actively exploited?

Yes. CVE-2021-26072 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-26072 be exploited remotely?

The attack vector of CVE-2021-26072 has not been classified yet.

What is the CVSS score of CVE-2021-26072?

CVE-2021-26072 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-26072

UNKNOWNCISA KEVIN THE WILD

CVE-2021-26072

Published: April 11, 2026

EPSS:21.06%probability of exploitation in 30 daysPercentile:95.6th

Official 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.

NVD Source

Technical Analysis

CVE-2021-26072 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-26072 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.