High
Security advisory
An issue was discovered in Mahara before 15.04.14, 16.x before 16.04.8, 16.10.x before 16.10.5, and 17.x before 17.04.3. When one closes the browser without logging out of Mahara, the value in the usr_session table is not removed. If someone were to open a browser, visit the Mahara site, and adjust the 'mahara' cookie to the old value, they can get access to the user's account.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-14163
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 04:18 UTC · Revision 1
Source evidence
An issue was discovered in Mahara before 15.04.14, 16.x before 16.04.8, 16.10.x before 16.10.5, and 17.x before 17.04.3. When one closes the browser without logging out of Mahara, the value in the usr_session table is not removed. If someone were to open a browser, visit the Mahara site, and adjust the 'mahara' cookie to the old value, they can get access to the user's account.
osv:CVE-2017-14163
Complete source record
{
"id": "ceee9d58a82e149d868a77b4d75cce8908ee6c2c9d3df06d6c077f575775da09",
"url": "https://osv.dev/vulnerability/CVE-2017-14163",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-14163",
"summary": "An issue was discovered in Mahara before 15.04.14, 16.x before 16.04.8, 16.10.x before 16.10.5, and 17.x before 17.04.3. When one closes the browser without logging out of Mahara, the value in the usr_session table is not removed. If someone were to open a browser, visit the Mahara site, and adjust the 'mahara' cookie to the old value, they can get access to the user's account.",
"evidence": "osv:CVE-2017-14163",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2017-14163",
"aliases": [
"CVE-2017-14163"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/maharaproject/mahara",
"type": "GIT",
"events": [
{
"introduced": "48a238a2f76a7ea322580fe93b7c026becd9acce"
},
{
"last_affected": "2e5d0ff8ba15844e22c1a4faaa3bd71263dff0bf"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04-rc1"
},
{
"last_affected": "15.04-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04-rc2"
},
{
"last_affected": "15.04-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.0"
},
{
"last_affected": "15.04.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.1"
},
{
"last_affected": "15.04.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.2"
},
{
"last_affected": "15.04.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.3"
},
{
"last_affected": "15.04.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.4"
},
{
"last_affected": "15.04.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.5"
},
{
"last_affected": "15.04.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.6"
},
{
"last_affected": "15.04.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.7"
},
{
"last_affected": "15.04.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.8:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.8"
},
{
"last_affected": "15.04.8"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.9:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.9"
},
{
"last_affected": "15.04.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.10:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.10"
},
{
"last_affected": "15.04.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.11:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.11"
},
{
"last_affected": "15.04.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.12:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.12"
},
{
"last_affected": "15.04.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:15.04.13:*:*:*:*:*:*:*",
"range": [
{
"introduced": "15.04.13"
},
{
"last_affected": "15.04.13"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04-rc1"
},
{
"last_affected": "16.04-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04-rc2"
},
{
"last_affected": "16.04-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.0"
},
{
"last_affected": "16.04.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.1"
},
{
"last_affected": "16.04.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.2"
},
{
"last_affected": "16.04.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.3"
},
{
"last_affected": "16.04.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.4"
},
{
"last_affected": "16.04.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.5:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.5"
},
{
"last_affected": "16.04.5"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.6:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.6"
},
{
"last_affected": "16.04.6"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.04.7:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.04.7"
},
{
"last_affected": "16.04.7"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10-rc1"
},
{
"last_affected": "16.10-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10-rc2"
},
{
"last_affected": "16.10-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10.0"
},
{
"last_affected": "16.10.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10.1"
},
{
"last_affected": "16.10.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10.2"
},
{
"last_affected": "16.10.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10.3"
},
{
"last_affected": "16.10.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:16.10.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "16.10.4"
},
{
"last_affected": "16.10.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:17.04:rc1:*:*:*:*:*:*",
"range": [
{
"introduced": "17.04-rc1"
},
{
"last_affected": "17.04-rc1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:17.04:rc2:*:*:*:*:*:*",
"range": [
{
"introduced": "17.04-rc2"
},
{
"last_affected": "17.04-rc2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:17.04.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "17.04.0"
},
{
"last_affected": "17.04.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:17.04.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "17.04.1"
},
{
"last_affected": "17.04.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mahara:mahara:17.04.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "17.04.2"
},
{
"last_affected": "17.04.2"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"15.04-rc1",
"15.04-rc2",
"15.04.0",
"15.04.1",
"15.04.10",
"15.04.11",
"15.04.12",
"15.04.13",
"15.04.2",
"15.04.3",
"15.04.4",
"15.04.5",
"15.04.6",
"15.04.7",
"15.04.8",
"15.04.9",
"16.04-rc1",
"16.04-rc2",
"16.04.0",
"16.04.1",
"16.04.2",
"16.04.3",
"16.04.4",
"16.04.5",
"16.04.6",
"16.04.7",
"16.10-rc1",
"16.10-rc2",
"16.10.0",
"16.10.1",
"16.10.2",
"16.10.3",
"16.10.4",
"17.04-rc1",
"17.04-rc2",
"17.04.0",
"17.04.1",
"17.04.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14163.json"
}
}
],
"modified": "2026-10-24T10:30:16.814726038Z",
"provider": "osv",
"references": [
"https://bugs.launchpad.net/mahara/+bug/1701978"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2017-14163",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 429419,
"published_at": "2017-10-31T18:29:00.25+00:00"
}