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LibWeb: Avoid invoking Trusted Types where avoidable

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Prevents observably calling Trusted Types, which can run arbitrary JS,
cause crashes due to use of MUST and allow arbitrary JS to modify
internal elements.
This commit is contained in:
Luke Wilde 2025-10-31 12:30:47 +00:00 • committed by Tim Flynn
parent fb9406ddcd
commit 82bd3d3891
Notes: github-actions[bot] 2025-11-06 16:46:00 +00:00
83 changed files with 407 additions and 366 deletions
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4
Libraries/LibWeb/DOM/DOMTokenList.cpp
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@ -258,7 +258,7 @@ void DOMTokenList::set_value(String const& value)
if (!associated_element)
return;
MUST(associated_element->set_attribute(m_associated_attribute, value));
associated_element->set_attribute_value(m_associated_attribute, value);
}
WebIDL::ExceptionOr<void> DOMTokenList::validate_token(StringView token) const
@ -294,7 +294,7 @@ void DOMTokenList::run_update_steps()
return;
// 2. Set an attribute value for the associated element using associated attribute’s local name and the result of running the ordered set serializer for token set.
MUST(associated_element->set_attribute(m_associated_attribute, serialize_ordered_set()));
associated_element->set_attribute_value(m_associated_attribute, serialize_ordered_set());
}
Optional<JS::Value> DOMTokenList::item_value(size_t index) const