Security advisory
MathJax version prior to version 2.7.4 contains a Cross Site Scripting (XSS) vulnerability in the \unicode{} macro that can result in Potentially untrusted Javascript running within a web browser. This attack appear to be exploitable via The victim must view a page where untrusted content is processed using Mathjax. This vulnerability appears to have been fixed in 2.7.4 and later.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2018-1999024
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 10:43 UTC · Revision 1
Source evidence
MathJax version prior to version 2.7.4 contains a Cross Site Scripting (XSS) vulnerability in the \unicode{} macro that can result in Potentially untrusted Javascript running within a web browser. This attack appear to be exploitable via The victim must view a page where untrusted content is processed using Mathjax. This vulnerability appears to have been fixed in 2.7.4 and later.
osv:CVE-2018-1999024
Complete source record
{
"id": "25f8658b906fb5766aac8799c3939224b7d822cc09739976cb81020a5f61349b",
"url": "https://osv.dev/vulnerability/CVE-2018-1999024",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2018-1999024",
"summary": "MathJax version prior to version 2.7.4 contains a Cross Site Scripting (XSS) vulnerability in the \\unicode{} macro that can result in Potentially untrusted Javascript running within a web browser. This attack appear to be exploitable via The victim must view a page where untrusted content is processed using Mathjax. This vulnerability appears to have been fixed in 2.7.4 and later.",
"evidence": "osv:CVE-2018-1999024",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2018-1999024",
"aliases": [
"CVE-2018-1999024",
"GHSA-3c48-6pcv-88rm"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mathjax/mathjax",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "50c333cc695066b9d27f713035b44c9ef78ab658"
},
{
"fixed": "a55da396c18cafb767a26aa9ad96f6f4199852f1"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mathjax:mathjax:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "2.7.4"
}
],
"source": "CPE_RANGE"
},
{
"range": [
{
"fixed": "a55da396c18cafb767a26aa9ad96f6f4199852f1"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"2.7.3",
"2.7.2",
"2.7.2-beta.1",
"2.7.2-rc",
"2.7.2-beta.0",
"2.7.1",
"2.7.0",
"2.6.1",
"2.6.0",
"2.5.3",
"2.5.2",
"2.5.1",
"2.5.0",
"2.4.0",
"2.2.0",
"2.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1999024.json"
}
}
],
"modified": "2026-10-20T10:51:34.671930251Z",
"provider": "osv",
"references": [
"https://github.com/mathjax/MathJax/commit/a55da396c18cafb767a26aa9ad96f6f4199852f1",
"https://blog.bentkowski.info/2018/06/xss-in-google-colaboratory-csp-bypass.html"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2018-1999024",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 382592,
"published_at": "2018-07-23T16:29:00.32+00:00"
}