Medium
Security advisory
A Cross Site Scripting (XSS) vulnerability exists in Codex before 1.4.0 via Notebook/Page name field, which allows malicious users to execute arbitrary code via a crafted http code in a .json file.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-43635
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 11:22 UTC · Revision 1
Source evidence
A Cross Site Scripting (XSS) vulnerability exists in Codex before 1.4.0 via Notebook/Page name field, which allows malicious users to execute arbitrary code via a crafted http code in a .json file.
osv:CVE-2021-43635
Complete source record
{
"id": "885027cdcac4bb32891c5285bbd1568665526e194d6a1f40cb79081d89b925fc",
"url": "https://osv.dev/vulnerability/CVE-2021-43635",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-43635",
"summary": "A Cross Site Scripting (XSS) vulnerability exists in Codex before 1.4.0 via Notebook/Page name field, which allows malicious users to execute arbitrary code via a crafted http code in a .json file.",
"evidence": "osv:CVE-2021-43635",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2021-43635",
"aliases": [
"CVE-2021-43635"
],
"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://github.com/jcv8000/codex",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "8e21f17f038d92a3245f18744b9bdc780c907403"
},
{
"fixed": "7f94eafb9647af75ad694eee60335fb8709da6e3"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:codexnotes:codex:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "1.4.0"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "7f94eafb9647af75ad694eee60335fb8709da6e3"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v1.4.1"
}
]
}
}
],
"versions": [
"v1.3.1",
"v1.3.0",
"v1.2.2-signed",
"v1.2.2",
"v1.2.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43635.json"
}
}
],
"modified": "2026-10-20T10:54:09.021342289Z",
"provider": "osv",
"references": [
"https://github.com/jcv8000/Codex/releases/tag/v1.4.1",
"https://github.com/jcv8000/Codex",
"https://github.com/jcv8000/Codex/issues/8"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2021-43635",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 384902,
"published_at": "2022-02-04T18:15:07.287+00:00"
}