CVE Explorer

CVE-2026-9309

Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9e0d78dc8a7e82f319f5609b25c271e2d00adc6ffb2452d7d489130f8219ed1d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"Firefox for iOS","vendor":"Mozilla","versions":[{"lessThanOrEqual":"*","status":"unaffected","version":"151.2","versionType":"rpm"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:9e85791415826dc3458ff122eaacdc41530c425f4ae5e5f1605ce94d43443db0 · sha256:fa5e2c66eb3a5b61… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:9e85791415826dc3458ff122eaacdc41530c425f4ae5e5f1605ce94d43443db0 · sha256:fa5e2c66eb3a5b61… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9e85791415826dc3458ff122eaacdc41530c425f4ae5e5f1605ce94d43443db0 · sha256:fa5e2c66eb3a5b61… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

2 source assertions

{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2036573"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9e85791415826dc3458ff122eaacdc41530c425f4ae5e5f1605ce94d43443db0 · sha256:fa5e2c66eb3a5b61… · /containers/cna/references/0

{"url":"https://www.mozilla.org/security/advisories/mfsa2026-53/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9e85791415826dc3458ff122eaacdc41530c425f4ae5e5f1605ce94d43443db0 · sha256:fa5e2c66eb3a5b61… · /containers/cna/references/1

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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