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Security Patch for the PHP Service in TrueConf Server

Due to the discovery of critical vulnerabilities in the PHP module used by the TrueConf Server web service (all versions up to and including 5.5.7), we strongly recommend upgrading to TrueConf Server 5.5.8. Installing this update is sufficient to protect against the PHP2Shell vulnerability — no additional steps are required.

If you are running TrueConf Server 5.4.x or 5.3.x, follow the instructions below to protect your system against PHP2Shell. The required changes must be applied to the physical or virtual machine running the TrueConf Web Manager service on Windows or the trueconf-php service on Linux.

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