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Attackers exploit Oracle PeopleSoft flaw through WAF bypass

Google and Mandiant report attackers linked to ShinyHunters are actively exploiting a critical Oracle PeopleSoft vulnerability, CVE-2026-35273, by circumventing common firewall protections. The group is deploying web shells and remote access software on systems across industries by using encoded URLs to bypass defenses intended to block prior attacks. Sectors affected include education, technology, healthcare, government, and more.

Why it mattersThe attack method allows criminals to compromise systems previously thought protected, exposing broad sectors to data theft and persistent access. Organizations using Oracle PeopleSoft should patch immediately and reassess their defenses.

Sources covering this

Google CloudPrimaryShinyHunters Renewed Mass Exploitation Campaign Targeting Oracle PeopleSoft2:00 PM →The Hacker NewsAttackers Bypass WAFs to Exploit Oracle PeopleSoft Flaw and Deploy Web Shells11:46 AM →

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