CVE-2022-34912
Estado: ModificadaMedia (6.1)—
An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1. The contributions-title, used on Special:Contributions, is used as page title without escaping. Hence, in a non-default configuration where a username contains HTML entities, it won't be escaped.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.08%
- Percentil entre todas las CVEs puntuadas: 64
- Fecha de la puntuación: 7/10/2026
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 (2)
CWE
- NVD-CWE-noinfo
Referencias
- https://lists.debian.org/debian-lts-announce/2022/09/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/
- https://phabricator.wikimedia.org/T308473
- https://security.gentoo.org/glsa/202305-24
- https://www.debian.org/security/2022/dsa-5246
- https://lists.debian.org/debian-lts-announce/2022/09/msg00027.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/
- https://phabricator.wikimedia.org/T308473
- https://security.gentoo.org/glsa/202305-24
- https://www.debian.org/security/2022/dsa-5246
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-34912",
"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
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.1,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2022-07-02T20:15:08.417",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00027.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/",
"source": "cve@mitre.org"
},
{
"url": "https://phabricator.wikimedia.org/T308473",
"tags": [
"Issue Tracking",
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://security.gentoo.org/glsa/202305-24",
"source": "cve@mitre.org"
},
{
"url": "https://www.debian.org/security/2022/dsa-5246",
"tags": [
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],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00027.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7N5ZBWLNNPZKFK7Q4KEHGCJ2YELQEUJP/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DKKOQXPYLMBSEVDHFS32BPBR3ZQJKY5B/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
"url": "https://phabricator.wikimedia.org/T308473",
"tags": [
"Issue Tracking",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.gentoo.org/glsa/202305-24",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2022/dsa-5246",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1. The contributions-title, used on Special:Contributions, is used as page title without escaping. Hence, in a non-default configuration where a username contains HTML entities, it won't be escaped."
},
{
"lang": "es",
"value": "Se ha descubierto un problema en MediaWiki versiones anteriores a 1.37.3 y en versiones 1.38.x anteriores a 1.38.1. El contributions-title, usa en Special:Contributions, es usadao como título de la página sin escapar. Por lo tanto, en una configuración no predeterminada donde un nombre de usuario contiene entidades HTML, no será escapado"
}
],
"lastModified": "2026-06-17T04:51:08.663",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "48E8296B-0A24-4DE1-8B96-D1EE1C73826E",
"versionEndExcluding": "1.37.3"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:1.38.0:-:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B110D8C5-7251-4CAF-B66D-73C891D6FBE8"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:1.38.0:rc0:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FC165C86-E90B-4854-8CC1-14BF58D46B23"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:1.38.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B9682453-AA16-4681-A019-C13931293D62"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD"
},
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}