CVE-2023-29538

Name: CVE-2023-29538
Creator: NVD / NIST
Published: 2023-06-02T17:15:12.567+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2023-29538 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Under specific circumstances a WebExtension may have received a <code>jar:file:///</code> URI instead of a <code>moz-extension:///</code> URI during a load request. This leaked directory paths on the user's machine. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

Under specific circumstances a WebExtension may have received a <code>jar:file:///</code> URI instead of a <code>moz-extension:///</code> URI during a load request. This leaked directory paths on the user's machine. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.40%

31.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-668

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 112.0
Mozilla	Focus	< 112.0

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1685403Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1685403Issue Tracking
https://www.mozilla.org/security/advisories/mfsa2023-13/Vendor Advisory

Timeline

Published: Jun 2, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29538?

How severe is CVE-2023-29538?

CVE-2023-29538 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29538?

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-2023-29538?

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

Scan your code now

Source: NVD / NIST