CVE-2020-12414 json
IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly…
published 2020-07-09 6 y ago modified 2026-08-19 2 mo ago also EUVD-2020-4726
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted when leaving private mode. This vulnerability affects Firefox for iOS < 27.
Patch / fix
- Mozilla Firefox for iOS 27
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Mozilla Firefox for iOS
Classification
- Weakness
-
- CWE-459 Incomplete Cleanup
References
-
mozilla.org
/security/advisories/mfsa2020-23/
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1646756
issue-tracking, permissions-required, vendor-advisory
Sources
- CVE List CVE-2020-12414
- NVD CVE-2020-12414
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.