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Vulnerability record · CVE-2023-29538 · published 2 June 2023

CVE-2023-29538: Mozilla firefox exposure of resource to wrong sphere vulnerability

Mozilla · Firefox

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.

4.3 CVSS 3.1 Medium EPSS 0.40% · top 68.2% CWE-668 · Exposure of resource to wrong sphere
4.3CVSS 3.1 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
4References
19 Aug 2026Last modified by NVD

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.

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-29538), CISA KEV, FIRST EPSS (scores of 2026-10-02). This page is refreshed as NVD updates the record.