High
Security advisory
Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-3734
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:12 UTC · Revision 1
Source evidence
Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.
osv:CVE-2016-3734
Complete source record
{
"id": "42a2ff3f665838b3d3e1dbd2e6513710ac5bd2d1bfee10fc7496bb66f0ed2e16",
"url": "https://osv.dev/vulnerability/CVE-2016-3734",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-3734",
"summary": "Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.",
"evidence": "osv:CVE-2016-3734",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2016-3734",
"aliases": [
"CVE-2016-3734",
"GHSA-r867-v437-4rrm"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/moodle/moodle",
"type": "GIT",
"events": [
{
"introduced": "c1ed2546431985262aefc4a39f9dec43e12426d3"
},
{
"last_affected": "97dd32edd69cd9d034b56b1f2c3ffe2f2e0832e9"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.0"
},
{
"last_affected": "2.7.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.0:beta:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.0-beta"
},
{
"last_affected": "2.7.0-beta"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.0:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.0-rc1"
},
{
"last_affected": "2.7.0-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.0:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.0-rc2"
},
{
"last_affected": "2.7.0-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.1"
},
{
"last_affected": "2.7.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.2"
},
{
"last_affected": "2.7.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.3"
},
{
"last_affected": "2.7.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.4"
},
{
"last_affected": "2.7.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.5"
},
{
"last_affected": "2.7.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.6"
},
{
"last_affected": "2.7.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.7"
},
{
"last_affected": "2.7.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.8"
},
{
"last_affected": "2.7.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.9"
},
{
"last_affected": "2.7.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.10"
},
{
"last_affected": "2.7.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.11"
},
{
"last_affected": "2.7.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.12"
},
{
"last_affected": "2.7.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.7.13:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.7.13"
},
{
"last_affected": "2.7.13"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.0"
},
{
"last_affected": "2.8.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.1"
},
{
"last_affected": "2.8.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.2"
},
{
"last_affected": "2.8.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.3"
},
{
"last_affected": "2.8.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.4"
},
{
"last_affected": "2.8.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.5"
},
{
"last_affected": "2.8.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.6"
},
{
"last_affected": "2.8.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.7"
},
{
"last_affected": "2.8.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.8"
},
{
"last_affected": "2.8.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.9"
},
{
"last_affected": "2.8.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.10"
},
{
"last_affected": "2.8.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.8.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.8.11"
},
{
"last_affected": "2.8.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.0"
},
{
"last_affected": "2.9.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.1"
},
{
"last_affected": "2.9.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.2"
},
{
"last_affected": "2.9.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.3"
},
{
"last_affected": "2.9.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.4"
},
{
"last_affected": "2.9.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:moodle:moodle:2.9.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.9.5"
},
{
"last_affected": "2.9.5"
}
],
"source": "CPE_STRING"
},
{
"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"
}
]
}
}
],
"versions": [
"2.7.0",
"2.7.0-beta",
"2.7.0-rc1",
"2.7.0-rc2",
"2.7.1",
"2.7.10",
"2.7.11",
"2.7.12",
"2.7.13",
"2.7.2",
"2.7.3",
"2.7.4",
"2.7.5",
"2.7.6",
"2.7.7",
"2.7.8",
"2.7.9",
"2.8.0",
"2.8.1",
"2.8.10",
"2.8.11",
"2.8.2",
"2.8.3",
"2.8.4",
"2.8.5",
"2.8.6",
"2.8.7",
"2.8.8",
"2.8.9",
"2.9.0",
"2.9.1",
"2.9.2",
"2.9.3",
"2.9.4",
"2.9.5",
"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",
"3.0.2",
"3.0.3",
"v3.0.3",
"v3.0.1",
"v3.0.0-rc3",
"v3.0.0",
"v3.0.0-rc4",
"v3.0.0-rc2",
"v3.0.0-rc1",
"v3.0.0-beta",
"v2.9.0",
"v2.9.0-rc2",
"v2.9.0-rc1",
"v2.9.0-beta",
"v2.8.0",
"v2.8.0-rc2",
"v2.8.0-rc1",
"v2.8.0-beta",
"v2.7.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-3734.json"
}
}
],
"modified": "2026-10-24T10:30:15.034398133Z",
"provider": "osv",
"references": [
"https://bugzilla.redhat.com/show_bug.cgi?id=1335933"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-3734",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429089,
"published_at": "2017-04-20T21:59:00.873+00:00"
}