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Arbitrary file upload is made possible by a missing file type validation.

A cyber-espionage campaign is targeting Ukrainian government entities with a series of sophisticated spear-phishing attacks that exploit XSS vulnerabilities.

Incident underscores impact of third-party breaches on health organizations, security experts say.

The addition is an important hire for the No. 2 position at the cyber agency. The main director role remains unfilled post-Easterly, with Bridget Bean taking over acting duties for now.

The online service has since been shut down as the agency grapples with the cyberattack, though it assures the public that those most in need of legal assistance will still be able to access help.