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go / go / 94e9a5e19b831504eca2b7202b78d1a48c4be547
commit94e9a5e19b831504eca2b7202b78d1a48c4be547[log] [tgz]
authorRoberto Clapis <robclap8@gmail.com>Mon Nov 18 10:05:07 2019 +0100
committerFilippo Valsorda <filippo@golang.org>Thu Nov 21 22:20:17 2019 +0000
tree6ac7a10d3644bf3efa6b026f4eb9b817fa6b15b4
parentf4a8bf128364e852cff87cf404a5c16c457ef8f6 [diff]
text/template: harden JSEscape to also escape ampersand and equal

Ampersand and equal are not dangerous in a JS/JSString context
but they might cause issues if interpolated in HTML attributes.

This change makes it harder to introduce XSS by misusing
escaping.

Thanks to t1ddl3r <t1ddl3r@gmail.com> for reporting this common
misuse scenario.

Fixes #35665

Change-Id: Ice6416477bba4cb2ba2fe2cfdc20e027957255c0
Reviewed-on: https://go-review.googlesource.com/c/go/+/207637
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Mike Samuel <mikesamuel@gmail.com>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
3 files changed
tree: 6ac7a10d3644bf3efa6b026f4eb9b817fa6b15b4
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
  18. SECURITY.md
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