CVE-2020-6830CWE-200information-disclosure

CVE-2020-6830

High · published May 26, 2020

CVSS v3.1
7.5
EPSS
1%
Percentile
59.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00910 · 59.4th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2020-05-26T22:15Z
Affected products (1)
ProductVersionsFixed in
mozilla/firefox_mobile< 25.025.0
References (4)
https://bugzilla.mozilla.org/show_bug.cgi?id=1632387 · [email protected]https://www.mozilla.org/security/advisories/mfsa2020-15/ · [email protected]https://bugzilla.mozilla.org/show_bug.cgi?id=1632387 · af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-15/ · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 26 MAY 17:06Z
    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
    cvelistv5