CVE-2019-17001

Name: CVE-2019-17001
Creator: NVD / NIST
Published: 2020-01-08T22:15:11.513+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.80%

Last modified Jun 17, 2026

CVE-2019-17001 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.*. EPSS estimates a 0.80% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.80%

52.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	69.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1587976Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-34/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1587976Permissions Required
https://www.mozilla.org/security/advisories/mfsa2019-34/Vendor Advisory

Timeline

Published: Jan 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-17001?

How severe is CVE-2019-17001?

CVE-2019-17001 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.80% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17001?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17001?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST