ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From sanitize-html 2.17.7 until 2.18.0, an application configuration that permits namespace-prefixed SVG animation elements and the relevant URL-targeting attributes can bypass the SMIL URL protection because prefixed tag names do not match the unprefixed animation-element check. The bypass can rewrite a link destination to an unsafe URI after the sanitized SVG is rendered, with script execution occurring when a user activates the affected link; the default sanitizer configuration is not unconditionally affected. This issue is fixed in sanitize-html 2.18.0.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-79"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113657.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "4.33.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "2.17.7"
},
{
"fixed": "2.18.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "f84fd41cbf6c22eb8d0008fc9c25df1f7130b350"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "sanitize-html@2.18.0",
"range": [
{
"fixed": "9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce"
}
],
"source": "REFERENCES_TAG"
}
]
}