Code injection

2020-05-2618:15:00

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7 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.1%

JSON

For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can’t call the bridging functions. That token was being used for JS-to-native also, but it isn’t needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.