Medium
Security advisory
Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the 'Add Asset' page via manipulation of a 'URL' field, which could let a remote malicious user execute arbitrary code.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-21101
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:02 UTC · Revision 1
Source evidence
Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the 'Add Asset' page via manipulation of a 'URL' field, which could let a remote malicious user execute arbitrary code.
osv:CVE-2020-21101
Complete source record
{
"id": "6f719c43a72498122900c2b4d425a261650a07d57dde376f50ca50b11f76970d",
"url": "https://osv.dev/vulnerability/CVE-2020-21101",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-21101",
"summary": "Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the 'Add Asset' page via manipulation of a 'URL' field, which could let a remote malicious user execute arbitrary code.",
"evidence": "osv:CVE-2020-21101",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-21101",
"aliases": [
"CVE-2020-21101"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/Screenly/Anthias",
"type": "GIT",
"events": [
{
"introduced": "85732dd849d430cd1202f1dbdf75961ff9463f21"
},
{
"last_affected": "6c2c2fd78099895fc3797024f926af77c16fa38d"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:screenly:screenly:0.9:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.9"
},
{
"last_affected": "0.9"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.9.1:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.9.1"
},
{
"last_affected": "0.9.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.10:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.10"
},
{
"last_affected": "0.10"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.11:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.11"
},
{
"last_affected": "0.11"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.12:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.12"
},
{
"last_affected": "0.12"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.12.1:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.12.1"
},
{
"last_affected": "0.12.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.13:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.13"
},
{
"last_affected": "0.13"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.14:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.14"
},
{
"last_affected": "0.14"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.15:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.15"
},
{
"last_affected": "0.15"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.15.1:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.15.1"
},
{
"last_affected": "0.15.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.16:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.16"
},
{
"last_affected": "0.16"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.17:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.17"
},
{
"last_affected": "0.17"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.18:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.18"
},
{
"last_affected": "0.18"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.18.1:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.18.1"
},
{
"last_affected": "0.18.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:screenly:screenly:0.18.2:*:*:*:ose:*:*:*",
"range": [
{
"introduced": "0.18.2"
},
{
"last_affected": "0.18.2"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"0.10",
"0.11",
"0.12",
"0.12.1",
"0.13",
"0.14",
"0.15",
"0.16",
"0.17",
"0.18",
"0.18.1",
"0.18.2",
"0.9",
"0.9.1",
"v0.15.1",
"v0.15",
"v0.14",
"v0.13",
"v0.12.1",
"v0.12",
"v0.11",
"v0.10",
"v0.9"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21101.json"
}
}
],
"modified": "2026-10-20T10:52:26.095238431Z",
"provider": "osv",
"references": [
"https://github.com/Screenly/screenly-ose/issues/1254"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-21101",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 383641,
"published_at": "2021-04-29T17:15:08.877+00:00"
}