Medium
mathlive's Lack of Escaping of HTML allows for XSS
Type: advisorySources: OSV
MathLive provides web components for math display and input. Prior to 0.110.0, MathLive fails to escape text-mode content in \text{} and \mbox{} commands in Box.toMarkup at src/core/box.ts, in xmlEscape, scanText, and text-mode output in src/formats/atom-to-math-ml.ts, and through convertLatexToMarkup, convertLatexToMathMl, , , and the default identity MathfieldElement.createHTML, allowing malicious input to run arbitrary JavaScript when rendered. This issue is fixed in version 0.110.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-54705
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 15:36 UTC · Revision 1
Source evidence
mathlive's Lack of Escaping of HTML allows for XSS
core-osv · Original sourcePublished 29 Jul 2026, 17:21 UTC
MathLive provides web components for math display and input. Prior to 0.110.0, MathLive fails to escape text-mode content in \text{} and \mbox{} commands in Box.toMarkup at src/core/box.ts, in xmlEscape, scanText, and text-mode output in src/formats/atom-to-math-ml.ts, and through convertLatexToMarkup, convertLatexToMathMl, , , and the default identity MathfieldElement.createHTML, allowing malicious input to run arbitrary JavaScript when rendered. This issue is fixed in version 0.110.0.
osv:CVE-2026-54705
Complete source record
{
"id": "3f1e9ef4f8987c793f60213d968827c0ce3fbda8f7d9cdc5072791a6a5670073",
"url": "https://osv.dev/vulnerability/CVE-2026-54705",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "mathlive's Lack of Escaping of HTML allows for XSS",
"summary": "MathLive provides web components for math display and input. Prior to 0.110.0, MathLive fails to escape text-mode content in \\text{} and \\mbox{} commands in Box.toMarkup at src/core/box.ts, in xmlEscape, scanText, and text-mode output in src/formats/atom-to-math-ml.ts, and through convertLatexToMarkup, convertLatexToMathMl, , , and the default identity MathfieldElement.createHTML, allowing malicious input to run arbitrary JavaScript when rendered. This issue is fixed in version 0.110.0.",
"evidence": "osv:CVE-2026-54705",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-54705",
"aliases": [
"CVE-2026-54705",
"GHSA-fm7p-gw32-828p"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/arnog/mathlive",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "b0a4b033997d897970e40da9ad9a0ad90358a198"
},
{
"fixed": "5fe1c46153883f9ec0249a5c8c34e64aaae9cfb8"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "0.110.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "5fe1c46153883f9ec0249a5c8c34e64aaae9cfb8"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
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"v0.109.1",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54705.json"
}
}
],
"modified": "2026-10-28T02:30:29.965017831Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54705.json",
"https://github.com/arnog/mathlive/security/advisories/GHSA-fm7p-gw32-828p",
"https://nvd.nist.gov/vuln/detail/CVE-2026-54705",
"https://github.com/arnog/mathlive/issues/3028",
"https://github.com/arnog/mathlive/commit/5fe1c46153883f9ec0249a5c8c34e64aaae9cfb8"
],
"provider_metadata": {
"cwe_ids": [
"CWE-116"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54705.json"
}
},
"related_cves": [
{
"value": "CVE-2026-54705",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 496875,
"published_at": "2026-07-29T17:21:20.414+00:00"
}