CVE-2022-31746

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-12-22 · updated 2026-08-19
Weakness: CWE-200

Description

Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header. This vulnerability affects Firefox for iOS < 102.

Affected products

Mozilla Firefox for Android: before 102.0 — fixed in 102.0

How to fix

Upgrade to a fixed version: Mozilla Firefox for Android 102.0. Check the vendor advisory for mitigations.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1654416
https://www.mozilla.org/security/advisories/mfsa2022-27/
https://bugzilla.mozilla.org/show_bug.cgi?id=1654416
https://www.mozilla.org/security/advisories/mfsa2022-27/
https://bugzilla.mozilla.org/show_bug.cgi?id=1654416

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