CVEvulnerability
CVE-2019-9801
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-04-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.3 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-20
Description
Firefox will accept any registered Program ID as an external protocol handler and offer to launch this local application when given a matching URL on Windows operating systems. This should only happen if the program has specifically registered itself as a "URL Handler" in the Windows registry. *Note: This issue only affects Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Affected configurations
• mozilla firefox (< 66.0)
• mozilla firefox esr (< 60.6)
• mozilla thunderbird (< 60.6)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1527717 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-07/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-08/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-11/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1527717 Issue Tracking, Permissions Required, Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-07/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-08/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-11/ Vendor Advisory