Description
When opening a page in reader mode, the redirect URL could have caused attacker-controlled script to execute in a reflected Cross-Site Scripting (XSS) attack. This vulnerability affects Firefox for iOS < 119.
Affected products
mozilla: firefox mobile
References6
- www.mozilla.org/security/advisories/mfsa2023-48/ Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-48/ Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1850019 Issue TrackingPermissions Required
- security.gentoo.org/glsa/202401-10
- bugzilla.mozilla.org/show_bug.cgi?id=1850019 Issue TrackingPermissions Required
- security.gentoo.org/glsa/202401-10
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 1% percentile: 44 · as of 5 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.