Medium
Security advisory
In October from version 1.0.319 and before version 1.0.466, a user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field. This has been fixed in 1.0.466. For users of the RainLab.Blog plugin, this has also been fixed in 1.4.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2020-11083
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:48 UTC · Revision 1
Source evidence
In October from version 1.0.319 and before version 1.0.466, a user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field. This has been fixed in 1.0.466. For users of the RainLab.Blog plugin, this has also been fixed in 1.4.1.
osv:CVE-2020-11083
Complete source record
{
"id": "3ae163bb28555b473284a2303b7245ec7218f8c067c928006f64c7daf8db355c",
"url": "https://osv.dev/vulnerability/CVE-2020-11083",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2020-11083",
"summary": "In October from version 1.0.319 and before version 1.0.466, a user with access to a markdown FormWidget that stores data persistently could create a stored XSS attack against themselves and any other users with access to the generated HTML from the field. This has been fixed in 1.0.466. For users of the RainLab.Blog plugin, this has also been fixed in 1.4.1.",
"evidence": "osv:CVE-2020-11083",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2020-11083",
"aliases": [
"CVE-2020-11083",
"GHSA-w4pj-7p68-3vgv"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/octobercms/october",
"type": "GIT",
"events": [
{
"introduced": "ca3e13ed330d97fab89c75cfb826a006d126ce67"
},
{
"fixed": "9e64e638057f162717598a7962d63ba9f139436b"
},
{
"fixed": "9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.0.319"
},
{
"fixed": "1.0.466"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11083.json"
}
},
{
"ranges": [
{
"repo": "https://github.com/rainlab/blog-plugin",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "6ae19a6e16ef3ba730692bc899851342c858bb94"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"fixed": "6ae19a6e16ef3ba730692bc899851342c858bb94"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v1.3.6",
"v1.3.5",
"v1.3.4",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11083.json"
}
}
],
"modified": "2026-10-20T10:51:45.954904930Z",
"provider": "osv",
"references": [
"https://github.com/octobercms/october/commit/9ecfb4867baae14a0d3f99f5b5c1e8a979ae8746",
"https://github.com/octobercms/october/security/advisories/GHSA-w4pj-7p68-3vgv",
"https://github.com/rainlab/blog-plugin/commit/6ae19a6e16ef3ba730692bc899851342c858bb94"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2020-11083",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382895,
"published_at": "2020-07-14T21:15:10.607+00:00"
}