This indicates an attack attempt to exploit a Remote Code Execution Vulnerability in Atlassian Confluence.
The vulnerability is due to insufficient input validation while handling a malicious request. A remote attacker may be able to exploit this to execute arbitrary code via a crafted HTTP request.

description-logoOutbreak Alert

A critical 0-day vulnerability on Atlassian Confluence Data Center and Server is actively being exploited in the wild. The vulnerability is established via the Object Graph Navigation Language (OGNL) injection that allows an unauthenticated user to execute arbitrary code..

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Joint Cybersecurity Advisory (CSA) has released the top Common Vulnerabilities and Exposures (CVEs) used since 2020 by Peoples Republic of China (PRC) state-sponsored cyber actors as assessed by the National Security Agency (NSA), Cybersecurity and Infrastructure Security Agency (CISA), and Federal Bureau of Investigation (FBI). Previously, FortiGuard labs has already published various Outbreaks Alerts included in the released CISA's advisory such as: Apache Log4j, Hikvision Webserver Vulnerability, Atlassian Confluence OGNL RCE Vulnerability, Microsoft Exchange Server RCE Vulnerabilities etc. See the full list at: Links to dedicated reports on each published outbreak by FortiGuard Labs are added to Additional Resources section below.

View the full Outbreak Alert Report

affected-products-logoAffected Products

versions prior to

Impact logoImpact

System Compromise: Remote attackers can gain control of vulnerable systems.

recomended-action-logoRecommended Actions

Apply the most recent upgrade or patch from the vendor

Telemetry logoTelemetry


IPS (Regular DB)
IPS (Extended DB)

Version Updates

Date Version Detail
2023-01-09 22.471 Sig Added
2022-06-06 21.333 Default_action:pass:drop
2022-06-04 21.331