Medium
Security advisory
An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11880
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 07:24 UTC · Revision 1
Source evidence
An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) "mailto?attach=..." parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.
osv:CVE-2020-11880
Complete source record
{
"id": "798fd6d6e7233b83b9795ef6659690ca212a977f77e5b2d9f7212876ed40872d",
"url": "https://osv.dev/vulnerability/CVE-2020-11880",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-11880",
"summary": "An issue was discovered in KDE KMail before 19.12.3. By using the proprietary (non-RFC6068) \"mailto?attach=...\" parameter, a website (or other source of mailto links) can make KMail attach local files to a composed email message without showing a warning to the user, as demonstrated by an attach=.bash_history value.",
"evidence": "osv:CVE-2020-11880",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-11880",
"aliases": [
"CVE-2020-11880"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/kde/kmail",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "75e8d32a308490cc26f246e98f8f15438b0e7b50"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:kde:kmail:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "19.12.3"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v19.12.2",
"v19.12.1",
"v19.12.0",
"v19.11.90",
"v19.11.80",
"v19.03.80",
"v17.11.80"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11880.json"
}
}
],
"modified": "2026-10-24T10:30:52.795695941Z",
"provider": "osv",
"references": [
"https://cgit.kde.org/kmail.git/tag/?h=v19.12.3",
"https://cgit.kde.org/kmail.git/commit/?id=2a348eccd352260f192d9b449492071bbf2b34b1"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-11880",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 437776,
"published_at": "2020-04-17T18:15:11.837+00:00"
}