CVE-2019-17001: XSS
First published: Tue Oct 22 2019(Updated: )
A Content-Security-Policy that blocks in-line scripts could be bypassed using an object tag to execute JavaScript in the protected document (cross-site scripting). This is a separate bypass from CVE-2019-17000.*Note: This flaw only affected Firefox 69 and was not present in earlier versions.*. This vulnerability affects Firefox < 70.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <70 | 70 |
| Mozilla Firefox | =69.0 | |
| debian/firefox | 133.0.3-1 |
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Reference Links
- https://www.mozilla.org/security/advisories/mfsa2019-34/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1587976
- https://launchpad.net/bugs/cve/CVE-2019-17001
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-17002
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-34/#CVE-2019-17001
- https://security-tracker.debian.org/tracker/CVE-2019-17001
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17001
- https://nvd.nist.gov/vuln/detail/CVE-2019-17001
- https://ubuntu.com/security/CVE-2019-17001
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2019-17001?
CVE-2019-17001 is a vulnerability that allows bypassing a Content-Security-Policy in Firefox 69 and executing JavaScript in a protected document.
How does CVE-2019-17001 work?
CVE-2019-17001 works by using an object tag to bypass a Content-Security-Policy that blocks in-line scripts and execute JavaScript in a protected document.
Which versions of Firefox are affected by CVE-2019-17001?
CVE-2019-17001 only affects Firefox 69 and is not present in earlier versions.
What is the severity of CVE-2019-17001?
CVE-2019-17001 has a severity value of 4 which is classified as medium.
How can CVE-2019-17001 be fixed?
To fix CVE-2019-17001, it is recommended to update Firefox to version 70 or later, as this vulnerability was remedied in Firefox 70.
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