What is CVE-2020-15661?

CVE-2020-15661 is a medium-severity vulnerability in Mozilla Firefox, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2020-08-10.

How severe is CVE-2020-15661?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mozilla Firefox

CVE-2020-15661

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.

EPSS: 0.008 (54.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Mozilla Firefox
Mozilla Firefox For Ios — versions unspecified

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

security@mozilla.org (x_refsource_MISC, Vendor Advisory)
security@mozilla.org (Permissions Required, x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2020-15661?: CVE-2020-15661 is a medium-severity vulnerability in Mozilla Firefox, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2020-08-10.
How severe is CVE-2020-15661?: Medium severity. CVSS v3 base score is 6.5 out of 10.