by Augusto Remillano II and Robert Malagad
In March 2019, Atlassian published an advisory covering two critical vulnerabilities involving Confluence, a widely used collaboration and planning software. In April, we observed one of these vulnerabilities, the widget connector vulnerability CVE-2019-3396, being exploited by threat actors to perform malicious attacks. Security provider Alert Logic also discovered the vulnerability being exploited to drop the Gandcrab ransomware.
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