Vulnerability Details CVE-2026-9308
Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was fixed in Firefox for iOS 151.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.1%
CVSS Severity
CVSS v3 Score 5.4
References
Products affected by CVE-2026-9308
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cpe:2.3:a:mozilla:firefox:-
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cpe:2.3:a:mozilla:firefox:102.0
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cpe:2.3:a:mozilla:firefox:119.0
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cpe:2.3:a:mozilla:firefox:120.0
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cpe:2.3:a:mozilla:firefox:127.0
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cpe:2.3:a:mozilla:firefox:129
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cpe:2.3:a:mozilla:firefox:14.0
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cpe:2.3:a:mozilla:firefox:15.0
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cpe:2.3:a:mozilla:firefox:15.1
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cpe:2.3:a:mozilla:firefox:16.0
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cpe:2.3:a:mozilla:firefox:16.1
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cpe:2.3:a:mozilla:firefox:16.2
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cpe:2.3:a:mozilla:firefox:17.0
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cpe:2.3:a:mozilla:firefox:17.1
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cpe:2.3:a:mozilla:firefox:17.2
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cpe:2.3:a:mozilla:firefox:17.3
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cpe:2.3:a:mozilla:firefox:18.0
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cpe:2.3:a:mozilla:firefox:18.1
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cpe:2.3:a:mozilla:firefox:18.2
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cpe:2.3:a:mozilla:firefox:19.0
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cpe:2.3:a:mozilla:firefox:19.1
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cpe:2.3:a:mozilla:firefox:20.0
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cpe:2.3:a:mozilla:firefox:20.1
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cpe:2.3:a:mozilla:firefox:20.2
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cpe:2.3:a:mozilla:firefox:21.0
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cpe:2.3:a:mozilla:firefox:22.0
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cpe:2.3:a:mozilla:firefox:23.0
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cpe:2.3:a:mozilla:firefox:24.0
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cpe:2.3:a:mozilla:firefox:24.1
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cpe:2.3:a:mozilla:firefox:25.0
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cpe:2.3:a:mozilla:firefox:25.1
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cpe:2.3:a:mozilla:firefox:26.0
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cpe:2.3:a:mozilla:firefox:27.0
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cpe:2.3:a:mozilla:firefox:28.0