CVE-2015-4498

Name: CVE-2015-4498
Creator: NVD / NIST
Published: 2015-08-29T19:59:01.827+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.68%

Last modified Jun 17, 2026

CVE-2015-4498 is a vulnerability of currently unknown severity. The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary http: or https: URL at a certain early point in the installation process.. EPSS estimates a 2.68% chance of exploitation in the next 30 days.

Description

The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary http: or https: URL at a certain early point in the installation process.

Metrics

EPSS Probability

2.68%

83.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-254

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	<= 40.0.2
Mozilla	Firefox	38.0
Mozilla	Firefox	38.0.1
Mozilla	Firefox	38.0.5
Mozilla	Firefox	38.1.0
Mozilla	Firefox	38.2.0

References

Timeline

Published: Aug 29, 2015
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-4498?

How severe is CVE-2015-4498?

Severity scoring for CVE-2015-4498 is pending analysis. The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.

How do I fix CVE-2015-4498?

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-2015-4498?

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

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Source: NVD / NIST