CVE-2019-11697

Name: CVE-2019-11697
Creator: NVD / NIST
Published: 2019-07-23T14:15:14.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.85%

Last modified Jun 17, 2026

CVE-2019-11697 is a vulnerability of currently unknown severity. If the ALT and "a" keys are pressed when users receive an extension installation prompt, the extension will be installed without the install prompt delay that keeps the prompt visible in order for users to accept or decline the installation. A malicious web page could use this with spoofing on the page to trick users into installing a malicious extension. EPSS estimates a 0.85% chance of exploitation in the next 30 days.

Description

If the ALT and "a" keys are pressed when users receive an extension installation prompt, the extension will be installed without the install prompt delay that keeps the prompt visible in order for users to accept or decline the installation. A malicious web page could use this with spoofing on the page to trick users into installing a malicious extension. This vulnerability affects Firefox < 67.

Metrics

EPSS Probability

0.85%

53.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 67.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1440079Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1440079Issue Tracking, Permissions Required, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory

Timeline

Published: Jul 23, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-11697?

How severe is CVE-2019-11697?

Severity scoring for CVE-2019-11697 is pending analysis. The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.

How do I fix CVE-2019-11697?

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-2019-11697?

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

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Source: NVD / NIST