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LibWeb: Fix hex character references accepting all alphabetic ASCII

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Instead of just A-F/a-f, any char A-Z/a-z was being accepted as a valid
hexadecimal digit.
This commit is contained in:
Ryan Liptak
2024-12-20 06:17:13 -08:00
committed by Jelle Raaijmakers
parent df87a9689c
commit 1ba15e1fa3
4 changed files with 93 additions and 9 deletions
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11
Libraries/LibWeb/HTML/Parser/HTMLTokenizer.cpp
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@@ -1819,16 +1819,11 @@ _StartOfFunction:
m_character_reference_code += current_input_character.value() - 0x30;
continue;
}
ON_ASCII_UPPER_ALPHA
ON_ASCII_HEX_DIGIT
{
m_character_reference_code *= 16;
m_character_reference_code += current_input_character.value() - 0x37;
continue;
}
ON_ASCII_LOWER_ALPHA
{
m_character_reference_code *= 16;
m_character_reference_code += current_input_character.value() - 0x57;
auto hex_digit_min_ascii_value = is_ascii_upper_alpha(current_input_character.value()) ? 0x37 : 0x57;
m_character_reference_code += current_input_character.value() - hex_digit_min_ascii_value;
continue;
}
ON(';')