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vuln-cve/data/2025/67xxx/CVE-2025-67853.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-67853",
"assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
"state": "PUBLISHED",
"assignerShortName": "fedora",
"dateReserved": "2025-12-12T13:00:24.330Z",
"datePublished": "2026-02-03T10:52:12.755Z",
"dateUpdated": "2026-02-03T15:43:49.951Z"
},
"containers": {
"cna": {
"title": "Moodle: moodle: brute-force facilitation due to missing rate limiting in confirmation email service",
"metrics": [
{
"other": {
"content": {
"value": "Important",
"namespace": "https://access.redhat.com/security/updates/classification/"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in Moodle. A remote attacker could exploit a lack of proper rate limiting in the confirmation email service. This vulnerability allows attackers to more easily enumerate or guess user credentials, facilitating brute-force attacks against user accounts."
}
],
"affected": [
{
"versions": [
{
"status": "affected",
"version": "4.1.0",
"lessThan": "4.1.22",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.4.0",
"lessThan": "4.4.12",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.5.0",
"lessThan": "4.5.8",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.0.0",
"lessThan": "5.0.4",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.1.0",
"lessThan": "5.1.1",
"versionType": "semver"
}
],
"packageName": "moodle",
"collectionURL": "https://github.com/moodle/moodle/",
"defaultStatus": "unaffected"
}
],
"references": [
{
"url": "https://access.redhat.com/security/cve/CVE-2025-67853",
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
]
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423847",
"name": "RHBZ#2423847",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
]
}
],
"datePublic": "2025-12-15T04:00:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-307",
"description": "Improper Restriction of Excessive Authentication Attempts",
"lang": "en",
"type": "CWE"
}
]
}
],
"x_redhatCweChain": "CWE-307: Improper Restriction of Excessive Authentication Attempts",
"timeline": [
{
"lang": "en",
"time": "2025-12-19T12:15:54.071Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2025-12-15T04:00:00.000Z",
"value": "Made public."
}
],
"credits": [
{
"lang": "en",
"value": "Red Hat would like to thank Petr Skoda for reporting this issue."
}
],
"providerMetadata": {
"orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
"shortName": "fedora",
"dateUpdated": "2026-02-03T10:52:12.755Z"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-02-03T15:43:42.458056Z",
"id": "CVE-2025-67853",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-02-03T15:43:49.951Z"
}
}
]
}
}