What’s Vulnerable › Vulnerabilities

CVE-2019-11717

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-07-23 · updated 2026-06-17
• Weakness: CWE-116

Description

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.

Affected products

• Debian Linux: 8.0
• Mozilla Firefox: before 60.8.0; before 68.0 — fixed in 60.8.0, 68.0
• Mozilla Thunderbird: before 60.8.0 — fixed in 60.8.0
• Novell Suse Package Hub For Suse Linux Enterprise: 12
• openSUSE Leap: 15.0, 15.1

How to fix

Upgrade to a fixed version: Mozilla Firefox 60.8.0, 68.0; Mozilla Thunderbird 60.8.0. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00055.html
• http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00058.html
• http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00073.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=1548306
• https://lists.debian.org/debian-lts-announce/2019/08/msg00001.html
• https://lists.debian.org/debian-lts-announce/2019/08/msg00002.html
• https://security.gentoo.org/glsa/201908-12
• https://security.gentoo.org/glsa/201908-20
• https://www.mozilla.org/security/advisories/mfsa2019-21/
• https://www.mozilla.org/security/advisories/mfsa2019-22/

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