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fix(Filters): check both keys and values in InvalidChars arrays - #10303
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paulbalandan merged 5 commits intoJun 14, 2026
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michalsn
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Jun 13, 2026
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Changelog entry should be added here: https://github.com/codeigniter4/CodeIgniter4/blob/develop/user_guide_src/source/changelogs/v4.7.4.rst |
paulbalandan
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Jun 14, 2026
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paulbalandan
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Jun 14, 2026
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Thank you, @gr8man |
maniaba pushed a commit
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Jun 17, 2026
…deigniter4#10303) * fix(Filters): check both keys and values in InvalidChars arrays * test(Filters): use DataProvider for InvalidChars control characters test * style: fix PHPStan iterable return type in tests * chore: re-trigger CI * docs: update changelog for InvalidChars array keys fix
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This PR fixes a bug in the
InvalidCharsfilter where array keys were not being validated.Previously,
checkControl()usedarray_map(), which only applied the callback to the array's values while ignoring the array's keys entirely. Due to this, any control characters or invalid UTF-8 sequences passed through array keys (e.g.$_POST['bad_key']) bypassed the filter.