Livromanowski Patched

When the vulnerability was disclosed responsibly, the maintainers of the LivRomanowski project moved with impressive speed. The "LivRomanowski patched" release (v.4.2.1) didn't just slap a band-aid on the problem; it restructured the input validation architecture.

Key changes included:

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The library in question had not undergone a major security audit since 2019. Its custom deserialization handlers were written in a way that bypassed standard PHP filters like htmlspecialchars() and filter_var(). Moreover, the library was often bundled as a dependency inside larger frameworks, meaning many developers did not even realize they were using it. Moreover, the library was often bundled as a