If you are looking to play this specific version in restricted environments like school or work, here are the most common methods available:
Because 1.5.2 was the stable build for so long, the modding scene left behind treasures: minecraft 1.5 2 unblocked
For users looking to play Minecraft 1.5.2, we recommend: If you are looking to play this specific
: This is a popular web-based port that allows you to play Minecraft 1.5.2 directly in modern browsers like Chrome or Firefox. Since it uses JavaScript and HTML5, it bypasses many traditional software blocks. it bypasses many traditional software blocks.