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A vulnerability in PHP's session extension (session.c) prior to versions 5.2.13 and 5.3.1 allows attackers to bypass open_basedir and safe_mode restrictions. The flaw is due to improper handling of semicolon (;) characters in the argument to the session_save_path() function. By crafting an argument with multiple semicolons and directory traversal sequences (..), an attacker can manipulate the session save path to escape restricted directories.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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Cross-references every affected SKU, including bundled OEM variants.
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