Medium
Security advisory
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-12157
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:19 UTC · Revision 1
Source evidence
In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.
osv:CVE-2017-12157
Complete source record
{
"id": "b8a0ec3b8303af76e06918b342ba5da9da68c8c68cef6d238fb7b3990bd8d42c",
"url": "https://osv.dev/vulnerability/CVE-2017-12157",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-12157",
"summary": "In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.",
"evidence": "osv:CVE-2017-12157",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2017-12157",
"aliases": [
"CVE-2017-12157",
"GHSA-gw95-48xq-gqf9"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/moodle/moodle",
"type": "GIT",
"events": [
{
"introduced": "6114fab93b414fcfa107d5a8fa2b35bc99d3464e"
},
{
"last_affected": "8e4341402a5c9326257b3036a936f98e08b5492f"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0"
},
{
"last_affected": "3.0.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:beta:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0-beta"
},
{
"last_affected": "3.0.0-beta"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0-rc1"
},
{
"last_affected": "3.0.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0-rc2"
},
{
"last_affected": "3.0.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0-rc3"
},
{
"last_affected": "3.0.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.0:rc4:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.0-rc4"
},
{
"last_affected": "3.0.0-rc4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.1"
},
{
"last_affected": "3.0.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.2"
},
{
"last_affected": "3.0.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.3"
},
{
"last_affected": "3.0.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.4"
},
{
"last_affected": "3.0.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.5"
},
{
"last_affected": "3.0.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.6"
},
{
"last_affected": "3.0.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.7"
},
{
"last_affected": "3.0.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.8"
},
{
"last_affected": "3.0.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.9"
},
{
"last_affected": "3.0.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.0.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.0.10"
},
{
"last_affected": "3.0.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0"
},
{
"last_affected": "3.1.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.0:beta:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0-beta"
},
{
"last_affected": "3.1.0-beta"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0-rc1"
},
{
"last_affected": "3.1.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.0-rc2"
},
{
"last_affected": "3.1.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.1"
},
{
"last_affected": "3.1.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.2"
},
{
"last_affected": "3.1.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.3"
},
{
"last_affected": "3.1.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.4"
},
{
"last_affected": "3.1.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.5"
},
{
"last_affected": "3.1.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.6"
},
{
"last_affected": "3.1.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.1.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.1.7"
},
{
"last_affected": "3.1.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0"
},
{
"last_affected": "3.2.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:beta:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-beta"
},
{
"last_affected": "3.2.0-beta"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-rc1"
},
{
"last_affected": "3.2.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-rc2"
},
{
"last_affected": "3.2.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-rc3"
},
{
"last_affected": "3.2.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:rc4:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-rc4"
},
{
"last_affected": "3.2.0-rc4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.0:rc5:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.0-rc5"
},
{
"last_affected": "3.2.0-rc5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.1"
},
{
"last_affected": "3.2.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.2"
},
{
"last_affected": "3.2.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.3"
},
{
"last_affected": "3.2.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.2.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.2.4"
},
{
"last_affected": "3.2.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.0"
},
{
"last_affected": "3.3.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.0:beta:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.0-beta"
},
{
"last_affected": "3.3.0-beta"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.0-rc1"
},
{
"last_affected": "3.3.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.0-rc2"
},
{
"last_affected": "3.3.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.0:rc3:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.0-rc3"
},
{
"last_affected": "3.3.0-rc3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:3.3.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.1"
},
{
"last_affected": "3.3.1"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"3.0.0",
"3.0.0-beta",
"3.0.0-rc1",
"3.0.0-rc2",
"3.0.0-rc3",
"3.0.0-rc4",
"3.0.1",
"3.0.10",
"3.0.2",
"3.0.3",
"3.0.4",
"3.0.5",
"3.0.6",
"3.0.7",
"3.0.8",
"3.0.9",
"3.1.0",
"3.1.0-beta",
"3.1.0-rc1",
"3.1.0-rc2",
"3.1.1",
"3.1.2",
"3.1.3",
"3.1.4",
"3.1.5",
"3.1.6",
"3.1.7",
"3.2.0",
"3.2.0-beta",
"3.2.0-rc1",
"3.2.0-rc2",
"3.2.0-rc3",
"3.2.0-rc4",
"3.2.0-rc5",
"3.2.1",
"3.2.2",
"3.2.3",
"3.2.4",
"3.3.0",
"3.3.0-beta",
"3.3.0-rc1",
"3.3.0-rc2",
"3.3.0-rc3",
"3.3.1",
"v3.3.1",
"v3.3.0",
"v3.3.0-rc3",
"v3.3.0-rc2",
"v3.3.0-rc1",
"v3.3.0-beta",
"v3.2.0-rc2",
"v3.2.0",
"v3.2.0-rc4",
"v3.2.0-beta",
"v3.2.0-rc5",
"v3.2.0-rc3",
"v3.2.0-rc1",
"v3.1.0-beta",
"v3.1.0",
"v3.1.0-rc2",
"v3.1.0-rc1",
"v3.0.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12157.json"
}
}
],
"modified": "2026-10-24T10:30:17.023154851Z",
"provider": "osv",
"references": [
"https://moodle.org/mod/forum/discuss.php?d=358586"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2017-12157",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429477,
"published_at": "2017-09-18T04:29:00.25+00:00"
}