CVE-2020-12404

low-risk

Published 2020-07-09

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.

Do I need to act?

0.26% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Firefox

Affected Vendors

Mozilla

References (4)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1631739

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-19/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1631739

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-19/

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal