SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-12404

That token could leak when used for downloading files.

MEDIUM 4.3EPSS 0.78%

Does this matter?

Lower severity and a low EPSS score (0.78%). Track it; it rarely justifies an emergency change on its own.

Description

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 could leak when used for downloading files. This vulnerability affects Firefox for iOS < 26.

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS
0.78% probability · 54th percentile
CISA KEV
Not listed
Weakness
CWE-79
Affected
mozilla/firefox mobile
Source
security@mozilla.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.