CVE-2019-11717

What it is

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.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

2.1% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2019-07-23 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 02:13 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 2.1% in the next 30 days (EPSS).
• Severity: 5.3 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2019-07-23 14:15 UTC

Last modified

2026-06-17 02:13 UTC

Exploit probability

2.1% · EPSS, next 30 days

Weakness

CWE-116

Record status

Modified

Affected

• Mozilla Firefox < 60.8.0
• Mozilla Firefox < 68.0
• Mozilla Thunderbird < 60.8.0
• Debian Linux 8.0
• Novell Suse Package Hub For Suse Linux Enterprise 12
• Opensuse Leap 15.0
• Opensuse Leap 15.1

Attack profile CVSS 3.1 · 5.3

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2019-11717.md and follow it. Check whether this project is affected by CVE-2019-11717. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

Copy as ticket · More options · Status badge