Vulnerability · Published May 26, 2020 · Assigned by mozilla
CVE-2020-6830
High 7.5
In plain English
A high-severity security flaw in Firefox for iOS from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.9%top 39.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox for iOS | unspecified – before 25 |
References
- https://www.mozilla.org/security/advisories/mfsa2020-15/ x_refsource_MISC
- https://bugzilla.mozilla.org/show_bug.cgi?id=1632387 x_refsource_MISC