A reflected XSS vulnerability exists in CMSimple_XH 1.8's index.php router when attacker-controlled path segments are not sanitized or encoded before being inserted into the generated HTML (navigation links, breadcrumbs, search form action, footer links). An attacker-controlled string placed in the URL path is reflected into multiple HTML elements, allowing execution of arbitrary JavaScript in victims' browsers visiting a crafted URL.
{
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/63xxx/CVE-2025-63589.json"
}{
"extracted_events": [
{
"cpe": "cpe:2.3:a:cmsimple-xh:cmsimple_xh:1.8.0:-:*:*:*:*:*:*",
"range": [
{
"introduced": "1.8.0-NA"
},
{
"last_affected": "1.8.0-NA"
}
],
"source": "CPE_STRING"
}
]
}