JS: Fix attributes nodes missing an enclosing callable #18973
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Pull Request Overview
A fix for Vue attribute nodes where attributes were missing an enclosing callable, ensuring that the shared data flow library now properly tracks the flow for the v-html attribute.
- Updated change note file to document the bug fix.
- Added inline test comments in the Vue test file to mark source and alert markers.
Reviewed Changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| javascript/ql/src/change-notes/2025-03-11-vue-fix.md | Added change notes for the bug fix |
| javascript/ql/test/query-tests/Security/CWE-079/DomBasedXss/v-html.vue | Updated test file with inline comments for source and alert markers |
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adityasharad
approved these changes
Mar 11, 2025
| */ | ||
| class DataFlowCallable extends TDataFlowCallable { | ||
| /** Gets a string representation of this callable. */ | ||
| string toString() { | ||
| result = this.asSourceCallable().toString() | ||
| or | ||
| result = this.asLibraryCallable() | ||
| or | ||
| result = this.asFileCallable().toString() |
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I always worry about missing cases like this - this kind of pattern matching feels like a good candidate for a QL-for-QL query :)
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Attribute nodes were missing their enclosing callable, which means the shared data flow library was unable to track flow there. As far as I can tell this only affects Vue.
I'm honestly not sure why
DataFlow::XmlAttributeNodeexists since we don't seem to use it for anything 😕.