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ID: typescript-express/external-filename-upload
Language: TypeScript
Severity: Warning
Category: Security
Using unsanitized user input in a sendFile
method can allow attackers to access unintended resources.
Set the root
option directly in your sendFile
options will make this rule not report a violation.
app.post("/upload", (req: Request, res: Response) => {
res.sendFile(req.params.filename)
res.sendFile(req.params.filename, { maxAge: 0 })
res.sendFile(req.params.filename, { maxAge: 0 }, (err) => console.log(err))
})
app.post("/upload", (req: Request, res: Response) => {
res.sendFile("foo")
const options = { maxAge: 0, root: path.join(__dirname, "upload") }
res.sendFile(req.params.filename, options)
res.sendFile(req.params.filename, { maxAge: 0, root: path.join(__dirname, "upload") })
res.sendFile(req.params.filename, options, (err) => console.log(err))
res.sendFile(req.params.filename, { maxAge: 0, root: path.join(__dirname, "upload") }, (err) => console.log(err))
})
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