Vulnerability in Mozilla Firefox
CVE-2019-11717
A vulnerability exists where the caret ("^") character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.021 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Mozilla Firefox — versions unspecified
- Mozilla Firefox Esr — versions unspecified
- Mozilla Thunderbird — versions unspecified
- Novell SUSE Package Hub For Linux Enterprise — versions 12
- Debian Linux — versions 8.0
- openSUSE Leap — versions 15.0, 15.1
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2019-21/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2019-22/ (Vendor Advisory)
- www.mozilla.org/security/advisories/mfsa2019-23/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/08/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/08/msg00002.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201908-12 (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201908-20 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-11717?
- CVE-2019-11717 is a medium-severity vulnerability in Mozilla Firefox, classified under Improper Encoding or Escaping of Output. CVSS score: 5.3/10. Published 2019-07-23.
- How severe is CVE-2019-11717?
- Medium severity. CVSS v3 base score is 5.3 out of 10.