CVE-2023-28159

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-06-02 · updated 2026-06-17
Weakness: CWE-1021

Description

The fullscreen notification could have been hidden on Firefox for Android by using download popups, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 111.

Affected products

Mozilla Firefox: before 111.0 — fixed in 111.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 111.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1783561
https://www.mozilla.org/security/advisories/mfsa2023-09/
https://bugzilla.mozilla.org/show_bug.cgi?id=1783561
https://www.mozilla.org/security/advisories/mfsa2023-09/
https://bugzilla.mozilla.org/show_bug.cgi?id=1783561

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