CVE-2012-4144
Estado: ModificadaMedia (4.3)—
Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document.
CVSS
- Versión: 2.0
- Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
- Puntuación base: 4.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.20%
- Percentil entre todas las CVEs puntuadas: 67
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-79
Referencias
- http://www.opera.com/docs/changelogs/mac/1166/
- http://www.opera.com/docs/changelogs/mac/1201/
- http://www.opera.com/docs/changelogs/unix/1201/
- http://www.opera.com/docs/changelogs/windows/1201/
- http://www.opera.com/support/kb/view/1025/
- http://www.opera.com/docs/changelogs/mac/1166/
- http://www.opera.com/docs/changelogs/mac/1201/
- http://www.opera.com/docs/changelogs/unix/1201/
- http://www.opera.com/docs/changelogs/windows/1201/
- http://www.opera.com/support/kb/view/1025/
JSON original (NVD)
Mostrar
{
"id": "CVE-2012-4144",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.3,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"authentication": "NONE",
"integrityImpact": "PARTIAL",
"accessComplexity": "MEDIUM",
"availabilityImpact": "NONE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2012-08-06T16:55:07.150",
"references": [
{
"url": "http://www.opera.com/docs/changelogs/mac/1166/",
"source": "cve@mitre.org"
},
{
"url": "http://www.opera.com/docs/changelogs/mac/1201/",
"source": "cve@mitre.org"
},
{
"url": "http://www.opera.com/docs/changelogs/unix/1201/",
"source": "cve@mitre.org"
},
{
"url": "http://www.opera.com/docs/changelogs/windows/1201/",
"source": "cve@mitre.org"
},
{
"url": "http://www.opera.com/support/kb/view/1025/",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.opera.com/docs/changelogs/mac/1166/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.opera.com/docs/changelogs/mac/1201/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.opera.com/docs/changelogs/unix/1201/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.opera.com/docs/changelogs/windows/1201/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.opera.com/support/kb/view/1025/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, does not properly escape characters in DOM elements, which makes it easier for remote attackers to bypass cross-site scripting (XSS) protection mechanisms via a crafted HTML document."
},
{
"lang": "es",
"value": "El navegador Opera anterior a v12,01 en Windows y UNIX, y anterior a v11.66, v12.x y v12.01 en Mac OS X, no se trata correctamente los caracteres de escape de los elementos DOM, lo que hace que sea más fácil para los atacantes remotos evitar vulnerabilidades de ejecución de secuencias de comandos en sitios cruzados (XSS) a través de los mecanismos de protección un documento HTML diseñado"
}
],
"lastModified": "2026-06-16T23:44:28.177",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2BD8D244-6208-4BE3-A2D7-F1C0C0DFACE9",
"versionEndIncluding": "12.00"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:12.00:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1591C7A0-AFE1-4742-951F-333073E630D8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "155AD4FB-E527-4103-BCEF-801B653DEA37"
},
{
"criteria": "cpe:2.3:o:microsoft:windows:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "2CF61F35-5905-4BA9-AD7E-7DB261D2F256"
}
],
"operator": "OR"
}
],
"operator": "AND"
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D74D636F-719A-493D-A33A-34FE1BEEB637",
"versionEndIncluding": "11.65"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.00:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2D03F8C2-1193-45ED-B38E-C76C41A0FD9A"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.00:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F12E0FE8-3982-453B-9C01-ABB2DE96866F"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.00:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DA76A537-6A1B-41D8-A923-24DC77F92E0E"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.00:beta3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2FA36E65-596D-4E84-A15C-1DF5FA3AAC76"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.01:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "320B5684-5006-4BA8-87ED-25C40E90F2DA"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4FE9E7F2-68B1-448D-86B6-52B345DD3C01"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.10:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5D3C98DA-3261-4BEB-8403-BE2E54A7056C"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.11:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C4C04948-023C-4569-9EFA-3BD4B254BBC7"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.50:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "137E9883-BF1D-4B54-A904-AFDE179452A3"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.50:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "872AEFA4-F7B2-49CF-8279-8BE602D70B95"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.50:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35400232-18B1-4641-8C98-6E8EB3A9C7E7"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.51:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "90EFC130-7E02-47AE-AC4E-569B59241FF5"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.52:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3D2745A8-9F99-48AF-A3C9-9659FA542B86"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.52:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EDDA25B9-3CE3-44F8-8B94-05E1840DBCE4"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.52:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EFB733B4-2DDD-4180-9E53-D399D499691D"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.53:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "57C77E63-E7CF-4EFF-9177-715C1815A0F3"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.53:b:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4D74A8DF-DCD2-41AB-BDC1-A314B3B55DAD"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.53:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2180C5E4-0756-4034-A724-4BE220F28C09"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.54:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EECA4D0B-0313-4B34-9A69-EE91ECC37270"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.60:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "46482B92-C1CF-4B50-B419-568262B6F38B"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.60:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F4619C12-AA06-4465-B595-47FC844B28A5"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.61:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C2046AA8-079B-49F9-A2F6-FCF58B509A70"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.62:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9D44F551-F0DF-4261-A13C-B81A4BD64D1A"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:10.63:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "542D7F0A-01AF-4377-A96A-348651F56B98"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.00:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "72EEEE50-F5DD-413F-8937-7B1AFB151DF4"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.00:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52A509DF-759B-466A-9D6E-4E4D559B0F8E"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.01:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CB95842D-6899-4ECD-B7F9-5CC62BE9D4AC"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.10:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5ACBA660-9AF0-40E2-8E9B-67E00D495023"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.10:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "52A36E55-80F8-40CD-A7DD-7FC291DCC3BC"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.11:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D98C5934-589D-4C86-9DD5-C72D3EA1F60E"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.50:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2A2BE3AD-767D-4ED1-A361-037957EBBA0C"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.50:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A1A640B6-6EEE-4968-AF1E-0B2D1160B2B0"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.51:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D0285C49-B30B-4C30-9E58-7A541B5E036C"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.52:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "86DC6DAB-7263-4EA4-B4DC-17A47F61A254"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.52.1100:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B820AB27-91C3-44D8-B9B6-10DB9905067A"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.60:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B6692220-BFFE-49F0-BDDE-171E40B90C1B"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.60:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "65619BBE-F7F0-48FB-877B-5D0431766098"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.61:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "933AAA5D-7558-46EA-A5F5-639E504F60C0"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.62:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4509B34E-A6BB-4853-BB27-B23B2F3E2718"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:11.64:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F5B81C0D-ECE7-425D-9149-133D9F698753"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:12.00:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4ECE9D17-A9DC-44FA-A54D-C7CBE413767D"
},
{
"criteria": "cpe:2.3:a:opera:opera_browser:12.00:beta:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1591C7A0-AFE1-4742-951F-333073E630D8"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "0FF5999A-9D12-4CDD-8DE9-A89C10B2D574"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "cve@mitre.org"
}