CVE-2018-5172: XSS

Published May 9, 2018
·
Updated

Last updated 25 August 2025

Other sources

The Live Bookmarks page and the PDF viewer can run injected script content if a user pastes script from the clipboard into them while viewing RSS feeds or PDF files. This could allow a malicious site to socially engineer a user to copy and paste malicious script content that could then run with the context of either page but does not allow for privilege escalation.

Affected Software

7 affected componentsFixes available
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Canonical Ubuntu Linux=18.04
Mozilla Firefox<60.0
Mozilla Firefox<60
60
debian/firefox
148.0-1

Event History

May 9, 2018
CVE Published
12:00 AM
Jun 11, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness
Data Sourced
via NVD·09:29 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:06 PM
Description
Dec 14, 2025
Data Sourced
via Ubuntu·06:29 PM
RemedyDescriptionSeverityAffected Software
Feb 27, 2026
Data Sourced
via Debian·12:55 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2018-5172?

CVE-2018-5172 is a vulnerability that allows the execution of injected script content when a user pastes script from the clipboard into the Live Bookmarks page or the PDF viewer in Firefox.

2

Who is affected by CVE-2018-5172?

Users of Mozilla Firefox versions up to 60.0 and Ubuntu Linux versions 14.04, 16.04, 17.10, and 18.04 with Firefox versions up to 60.0 are affected.

3

What is the severity of CVE-2018-5172?

CVE-2018-5172 has a severity rating of medium.

4

How can I protect myself from CVE-2018-5172?

Update your Mozilla Firefox to version 60.0 or later and ensure that you are using the latest version of Ubuntu Linux.

5

Where can I get more information about CVE-2018-5172?

You can find more information about CVE-2018-5172 on the Mozilla Bugzilla, Mozilla Security Advisories, and SecurityFocus websites.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203