Ubuntu Security Notice 1439-1 - Matthias Weckbecker discovered a cross-site scripting (XSS) vulnerability in Horizon via the log viewer refresh mechanism. If a user were tricked into viewing a specially crafted log message, a remote attacker could exploit this to modify the contents or steal confidential data within the same domain. Thomas Biege discovered a session fixation vulnerability in Horizon. An attacker could exploit this to potentially allow access to unauthorized information and capabilities. Various other issues were also addressed.
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