Medium
Security advisory
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2019-11454
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:28 UTC · Revision 1
Source evidence
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
osv:CVE-2019-11454
Complete source record
{
"id": "250e1714f92596a6900cca1c1179d2a2963ea64da0b7e30f8242e431010f2ccc",
"url": "https://osv.dev/vulnerability/CVE-2019-11454",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2019-11454",
"summary": "Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.",
"evidence": "osv:CVE-2019-11454",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2019-11454",
"aliases": [
"CVE-2019-11454"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://bitbucket.org/tildeslash/monit",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "e9e458ae169c1155cdcd9ca956c0cb4b8d5614f9"
},
{
"fixed": "1a8295eab6815072a18019b668fe084945b751f3"
},
{
"fixed": "328f60773057641c4b2075fab9820145e95b728c"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mmonit:monit:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "5.25.3"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "1a8295eab6815072a18019b668fe084945b751f3"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "328f60773057641c4b2075fab9820145e95b728c"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"release-5-25-2",
"release-5-25-1",
"release-5-25-0",
"release-5-24-0",
"release-5-23-0",
"release-5-20-0",
"release-5-19-0",
"release-5-18-0",
"release-5-17-1",
"release-5-17-0",
"release-5-16-0",
"release-5-15-0",
"release-5-14-0",
"release-5-13-0",
"release-5-12-2",
"release-5-12-1",
"release-5-12-0",
"release-5-11-0",
"release-5-8-1",
"release-5-8",
"release-5-7"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-11454.json",
"vanir_signatures": [
{
"id": "CVE-2019-11454-0dc3f653",
"digest": {
"threshold": 0.9,
"line_hashes": [
"192760338526727209623324117128154017375",
"176363103172019343482822146618895062539",
"268951090696583617304681140437510744709",
"59623480104490707459496006942355571950"
]
},
"source": "https://bitbucket.org/tildeslash/monit@328f60773057641c4b2075fab9820145e95b728c",
"target": {
"file": "src/http/cervlet.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-11454-16367172",
"digest": {
"threshold": 0.9,
"line_hashes": [
"335804617024891229671540928535154829375",
"310100624601859608845471492265078988370",
"154807492576191686414917484984983555220",
"87379780001120515149930474484174954645"
]
},
"source": "https://bitbucket.org/tildeslash/monit@e9e458ae169c1155cdcd9ca956c0cb4b8d5614f9",
"target": {
"file": "src/monit.c"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2019-11454-4c95ae77",
"digest": {
"length": 598,
"function_hash": "287019773174119488372765190948736526793"
},
"source": "https://bitbucket.org/tildeslash/monit@e9e458ae169c1155cdcd9ca956c0cb4b8d5614f9",
"target": {
"file": "src/monit.c",
"function": "version"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2019-11454-a558f63e",
"digest": {
"length": 1120,
"function_hash": "316469937887899855624336538781855417458"
},
"source": "https://bitbucket.org/tildeslash/monit@328f60773057641c4b2075fab9820145e95b728c",
"target": {
"file": "src/http/cervlet.c",
"function": "do_viewlog"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T13:39:35Z"
}
}
],
"modified": "2026-10-20T13:39:35.258752982Z",
"provider": "osv",
"references": [
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HZQDHRSKTEX5MSYXNCGFTUSFGANBARHX/",
"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L475QJMFFI2QV5QEHAKKPVX6QX6ECUL6/",
"https://lists.debian.org/debian-lts-announce/2019/04/msg00028.html",
"https://lists.debian.org/debian-lts-announce/2021/12/msg00018.html",
"https://usn.ubuntu.com/3971-1/",
"https://bitbucket.org/tildeslash/monit/commits/1a8295eab6815072a18019b668fe084945b751f3",
"https://bitbucket.org/tildeslash/monit/commits/328f60773057641c4b2075fab9820145e95b728c",
"https://github.com/dzflack/exploits/blob/master/unix/monit_xss.py"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
"cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*"
],
"vendor_product": "canonical:ubuntu_linux",
"extracted_events": [
{
"range": [
{
"introduced": "18.10"
},
{
"last_affected": "18.10"
},
{
"introduced": "19.04"
},
{
"last_affected": "19.04"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"cpes": [
"cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
],
"vendor_product": "fedoraproject:fedora",
"extracted_events": [
{
"range": [
{
"introduced": "31"
},
{
"last_affected": "31"
},
{
"introduced": "32"
},
{
"last_affected": "32"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2019-11454",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 387912,
"published_at": "2019-04-22T16:29:01.49+00:00"
}