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CVE-2026-45753 Symfony: HtmlSanitizer UrlAttributeSanitizer Omits action/formaction/poster/cite — javascript: URI Survives Sanitization (XSS)
10
Node
OR
OROR
[
{
"vendor": "symfony",
"product": "symfony",
"versions": [
{
"version": ">= 6.1.0-BETA1, < 6.4.40",
"status": "affected"
},
{
"version": ">= 7.0.0-BETA1, < 7.4.12",
"status": "affected"
},
{
"version": ">= 8.0.0-BETA1, < 8.0.12",
"status": "affected"
}
]
},
{
"vendor": "symfony",
"product": "html-sanitizer",
"versions": [
{
"version": ">= 6.1.0-BETA1, < 6.4.40",
"status": "affected"
},
{
"version": ">= 7.0.0-BETA1, < 7.4.12",
"status": "affected"
},
{
"version": ">= 8.0.0-BETA1, < 8.0.12",
"status": "affected"
}
]
}
]Data
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14 Jul 2026 18:22Current
6.1Medium risk
Vulners AI Score6.1
CVSS 42.1
EPSS0.00082