Marius Ciepluch and Claude Opus 5.5
cc885f025c
feat(taint): project sink wrappers, one level and confirmed by dataflow
...
This is the second attempt at the YesWiki shape: SQL run through
`$this->dbService->query($query)`, whose body is the `mysqli_query` the facts name,
through a receiver the frontend cannot type. The first attempt was reverted in
c7e3a05 .
A method is now a wrapper for a parameter only when the engine's own dataflow
inside the method carries that parameter to a fact sink's argument, on a plausible
path that no cleansing or guard discharges. The guard rails:
- one level only;
- nothing under a bundled library tree (lib/, vendor/, node_modules/, ...);
- a name counts only if every project method with that name is a wrapper;
- wrappers are asked in the flow pass only, never in the evidence pass, so no
region's selection or pruning changes;
- at a wrapper call, only the confirmed argument is asked.
Three Joern-gated tests cover the direct shape (reported), a literal, an
intval-casting helper and a level-2 feeder (not reported), a harmless same-named
method, and a wrapper inside lib/. Each fails when its rule is removed.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected] >
Claude-Session: https://claude.ai/code/session_01EmM1j46qgKMh3zqD1QMwEo
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