Security advisory
An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-9839
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:31 UTC · Revision 1
Source evidence
An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).
osv:CVE-2018-9839
Complete source record
{
"id": "ab73908a1b3644766f3d95ac1ed76d04a951c6fac82e23617c4708db4ac1e266",
"url": "https://osv.dev/vulnerability/CVE-2018-9839",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-9839",
"summary": "An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).",
"evidence": "osv:CVE-2018-9839",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-9839",
"aliases": [
"CVE-2018-9839"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mantisbt/mantisbt",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "6ad90df07d71a421022c44501029cdd8d0ab5831"
},
{
"introduced": "ac51f2a22377ec1cef40ae53048327d7ab2df33e"
},
{
"last_affected": "ac51f2a22377ec1cef40ae53048327d7ab2df33e"
},
{
"fixed": "1fbcd9bca2f2c77cb61624d36ddee4b3802c38ea"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mantisbt:mantisbt:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.3.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mantisbt:mantisbt:2.0.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "2.0.0"
},
{
"last_affected": "2.0.0"
}
],
"source": "CPE_STRING"
},
{
"range": [
{
"fixed": "1fbcd9bca2f2c77cb61624d36ddee4b3802c38ea"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.0.0",
"release-1.3.14",
"release-1.3.13",
"release-1.3.12",
"release-1.3.11",
"release-1.3.10",
"release-1.3.9",
"release-1.3.8",
"release-1.3.7",
"release-1.3.6",
"release-1.3.5",
"release-2.0.0",
"release-1.3.4",
"release-1.3.3",
"release-1.3.2",
"release-1.3.1",
"release-1.3.0",
"release-1.3.0-rc.2",
"release-1.3.0-rc.1",
"release-1.3.0-beta.3",
"release-1.3.0-beta.2",
"release-1.3.0-beta.1",
"release-1.2.0rc1",
"release-1.2.0a3",
"release-1.2.0a2",
"release-1.2.0a1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-9839.json"
}
}
],
"modified": "2026-10-20T10:50:32.623529960Z",
"provider": "osv",
"references": [
"https://mantisbt.org/bugs/view.php?id=24221",
"https://github.com/mantisbt/mantisbt/commit/1fbcd9bca2f2c77cb61624d36ddee4b3802c38ea"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-9839",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 381843,
"published_at": "2019-06-06T19:29:00.297+00:00"
}