CVE-2020-15661 json
A rogue webpage could override the injected WKUserScript used by the logins autofill, this exploit could result in leaking a password for t…
published 2020-08-10 6 y ago modified 2026-08-19 2 mo ago also EUVD-2020-7648
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
A rogue webpage could override the injected WKUserScript used by the logins autofill, this exploit could result in leaking a password for the current domain. This vulnerability affects Firefox for iOS < 28.
Patch / fix
- Mozilla Firefox for iOS 28
Exploit prediction
0.85% chance of exploitation in the next 30 days, higher than 58% 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:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Mozilla Firefox for iOS
Classification
- Weakness
-
- CWE-522 Insufficiently Protected Credentials
References
-
mozilla.org
/security/advisories/mfsa2020-34/
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1654131
issue-tracking, permissions-required, vendor-advisory
Sources
- CVE List CVE-2020-15661
- NVD CVE-2020-15661
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