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TI-2018-08899 Aliases CVE-2018-12400GHSA-wxmw-mw39-8fw9

Information disclosure in Mozilla Firefox

Priority LOW 27CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.

Summary

In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63.

Why it matters now

EPSS 0.01565 75th percentileScored 2026-11-07
Fix Fixed Firefox (Mozilla): 63

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFirefoxbefore 6363Patch availableCNA
  • Firefox VendorMozilla Affected before 63 Fixed in 63 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*before 63.0VulnerableMozilla
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*not specified by NVDRunning onGoogle
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 63.0 Vulnerable ·Mozilla
  • cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google

Remediation

  • Fix · CNA Firefox (Mozilla) Fixed in 63

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Mozilla Firefox 63

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2018-08891 Incorrect authorization in Mozilla FirefoxPriority MEDIUM 42
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-12400
  2. 2026-10-03 Alias added: GHSA-wxmw-mw39-8fw9

References

Advisory 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences