CVE-2023-36675
Status: ModifiedMedium (6.1)—
An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, and 1.39.x before 1.39.4. BlockLogFormatter.php in BlockLogFormatter allows XSS in the partial blocks feature.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Base score: 6.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.83%
- Percentile among all scored CVEs: 56
- Score date: 10/7/2026
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-79
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2UIVGYECQGTUC2LLPVCZBPDLCTOHL2F6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CHRX6DSLAMVXCV2YMJEWOLTBEYSESE5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOAXEGYBOEM4JWB4J3BDH73NK2LCYC3O/
- https://phabricator.wikimedia.org/T332889
- https://www.debian.org/security/2023/dsa-5447
- https://www.mediawiki.org/wiki/Release_notes/1.40#Other_changes_in_1.40
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2UIVGYECQGTUC2LLPVCZBPDLCTOHL2F6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6CHRX6DSLAMVXCV2YMJEWOLTBEYSESE5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOAXEGYBOEM4JWB4J3BDH73NK2LCYC3O/
- https://phabricator.wikimedia.org/T332889
- https://www.debian.org/security/2023/dsa-5447
- https://www.mediawiki.org/wiki/Release_notes/1.40#Other_changes_in_1.40
Raw JSON (NVD)
Show
{
"id": "CVE-2023-36675",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-36675",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2024-12-05T15:24:50.715733Z"
}
}
],
"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": "2023-06-26T01:15:09.203",
"references": [
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2UIVGYECQGTUC2LLPVCZBPDLCTOHL2F6/",
"source": "cve@mitre.org"
},
{
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},
{
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"source": "cve@mitre.org"
},
{
"url": "https://phabricator.wikimedia.org/T332889",
"tags": [
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"source": "cve@mitre.org"
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{
"url": "https://www.debian.org/security/2023/dsa-5447",
"tags": [
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"source": "cve@mitre.org"
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{
"url": "https://www.mediawiki.org/wiki/Release_notes/1.40#Other_changes_in_1.40",
"tags": [
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{
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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{
"url": "https://www.debian.org/security/2023/dsa-5447",
"tags": [
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"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, and 1.39.x before 1.39.4. BlockLogFormatter.php in BlockLogFormatter allows XSS in the partial blocks feature."
},
{
"lang": "es",
"value": "Se descubrió un problema en MediaWiki antes de 1.35.11, 1.36.x hasta 1.38.x antes de 1.38.7 y 1.39.x antes de 1.39.4. BlockLogFormatter.php en BlockLogFormatter permite XSS en la función de bloques parciales."
}
],
"lastModified": "2026-06-17T06:06:48.830",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FB8FFF65-64E2-4995-9D76-4A76E9165631",
"versionEndExcluding": "1.35.11"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "604E0A5B-4554-46AA-98AF-608A2CCDBF4F",
"versionEndExcluding": "1.38.7",
"versionStartIncluding": "1.36.0"
},
{
"criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8B25814F-6A96-432B-9E6B-458E8FAA8B32",
"versionEndExcluding": "1.39.4",
"versionStartIncluding": "1.39.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}