CVE-2019-9797
Status: ModifiedMedium (5.3)—
Cross-origin images can be read in violation of the same-origin policy by exporting an image after using createImageBitmap to read the image and then rendering the resulting bitmap image within a canvas element. This vulnerability affects Firefox < 66.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Base score: 5.3
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.11%
- Percentile among all scored CVEs: 65
- Score date: 10/10/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- CWE-346
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html
- https://access.redhat.com/errata/RHSA-2019:1265
- https://access.redhat.com/errata/RHSA-2019:1267
- https://access.redhat.com/errata/RHSA-2019:1269
- https://access.redhat.com/errata/RHSA-2019:1308
- https://access.redhat.com/errata/RHSA-2019:1309
- https://access.redhat.com/errata/RHSA-2019:1310
- https://bugzilla.mozilla.org/show_bug.cgi?id=1528909
- https://lists.debian.org/debian-lts-announce/2019/05/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00038.html
- https://seclists.org/bugtraq/2019/May/56
- https://seclists.org/bugtraq/2019/May/59
- https://seclists.org/bugtraq/2019/May/67
- https://usn.ubuntu.com/3997-1/
- https://www.debian.org/security/2019/dsa-4448
- https://www.debian.org/security/2019/dsa-4451
- https://www.mozilla.org/security/advisories/mfsa2019-07/
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html
- https://access.redhat.com/errata/RHSA-2019:1265
- https://access.redhat.com/errata/RHSA-2019:1267
- https://access.redhat.com/errata/RHSA-2019:1269
- https://access.redhat.com/errata/RHSA-2019:1308
- https://access.redhat.com/errata/RHSA-2019:1309
- https://access.redhat.com/errata/RHSA-2019:1310
- https://bugzilla.mozilla.org/show_bug.cgi?id=1528909
- https://lists.debian.org/debian-lts-announce/2019/05/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00038.html
- https://seclists.org/bugtraq/2019/May/56
- https://seclists.org/bugtraq/2019/May/59
- https://seclists.org/bugtraq/2019/May/67
- https://usn.ubuntu.com/3997-1/
- https://www.debian.org/security/2019/dsa-4448
- https://www.debian.org/security/2019/dsa-4451
- https://www.mozilla.org/security/advisories/mfsa2019-07/
Raw JSON (NVD)
Show
{
"id": "CVE-2019-9797",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 5,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "NONE",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 10,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 1.4,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security@mozilla.org",
"affectedData": [
{
"vendor": "Mozilla",
"product": "Firefox",
"versions": [
{
"status": "affected",
"version": "unspecified",
"lessThan": "66",
"versionType": "custom"
}
]
}
]
}
],
"published": "2019-04-26T17:29:02.680",
"references": [
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html",
"source": "security@mozilla.org"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html",
"source": "security@mozilla.org"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1265",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1267",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1269",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1308",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1309",
"source": "security@mozilla.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1310",
"source": "security@mozilla.org"
},
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528909",
"tags": [
"Issue Tracking",
"Permissions Required",
"Vendor Advisory"
],
"source": "security@mozilla.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00032.html",
"source": "security@mozilla.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00038.html",
"source": "security@mozilla.org"
},
{
"url": "https://seclists.org/bugtraq/2019/May/56",
"source": "security@mozilla.org"
},
{
"url": "https://seclists.org/bugtraq/2019/May/59",
"source": "security@mozilla.org"
},
{
"url": "https://seclists.org/bugtraq/2019/May/67",
"source": "security@mozilla.org"
},
{
"url": "https://usn.ubuntu.com/3997-1/",
"source": "security@mozilla.org"
},
{
"url": "https://www.debian.org/security/2019/dsa-4448",
"source": "security@mozilla.org"
},
{
"url": "https://www.debian.org/security/2019/dsa-4451",
"source": "security@mozilla.org"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2019-07/",
"tags": [
"Vendor Advisory"
],
"source": "security@mozilla.org"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1265",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1267",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1269",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1308",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1309",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:1310",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1528909",
"tags": [
"Issue Tracking",
"Permissions Required",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00032.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2019/05/msg00038.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://seclists.org/bugtraq/2019/May/56",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://seclists.org/bugtraq/2019/May/59",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://seclists.org/bugtraq/2019/May/67",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://usn.ubuntu.com/3997-1/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2019/dsa-4448",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2019/dsa-4451",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2019-07/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-346"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Cross-origin images can be read in violation of the same-origin policy by exporting an image after using createImageBitmap to read the image and then rendering the resulting bitmap image within a canvas element. This vulnerability affects Firefox < 66."
},
{
"lang": "es",
"value": "Las imágenes de origen cruzado se pueden leer infringiendo la política del mismo origen al exportar una imagen después de utilizar createImageBitmap para leer la imagen y luego renderizar la imagen de mapa de bits resultante dentro de un elemento canvas. Esta vulnerabilidad afecta a Firefox, versiones anteriores a 66."
}
],
"lastModified": "2026-06-17T02:44:21.733",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DF5B7642-9E9D-4578-9120-B95A6B198177",
"versionEndExcluding": "66.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security@mozilla.org"
}