Description
An attacker could have accessed internal pages or data by ex-filtrating a security key from ReaderMode via the `referrerpolicy` attribute. This vulnerability affects Firefox for iOS < 120.
Affected products
mozilla: firefox mobile
References4
- www.mozilla.org/security/advisories/mfsa2023-51/ Release NotesVendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-51/ Release NotesVendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1861405 Issue TrackingNot Applicable
- bugzilla.mozilla.org/show_bug.cgi?id=1861405 Issue TrackingNot Applicable
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 51 · as of 5 November 2026
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