CVE-2025-52561
HTMLSanitizer.jl is a Whitelist-based HTML sanitizer. Prior to version 0.2.1, when adding the style tag to the whitelist, content inside the tag is incorrectly unescaped, and closing tags injected as content are interpreted as real HTML, enabling tag injection and JavaScript execution. This could result in possible cross-site scripting (XSS) in any HTML that is sanitized with this library. This issue has been patched in version 0.2.1. A workaround involves adding the math and svg elements to the whitelist manually.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 6.9
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.86%
- Percentil entre todas las CVEs puntuadas: 57
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-79
Referencias
JSON original (NVD)
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{
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"id": "CVE-2025-52561",
"role": "CISA Coordinator",
"options": [
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},
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"version": "2.0.3",
"timestamp": "2025-06-24T13:46:34.375311Z"
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"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
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"userInteraction": "NONE",
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"vulnIntegrityImpact": "NONE",
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"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
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"published": "2025-06-23T21:15:26.570",
"references": [
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"url": "https://github.com/JuliaComputing/HTMLSanitizer.jl/commit/0c3dc359e4a64c39cac609541945c0518feef040",
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"url": "https://github.com/JuliaComputing/HTMLSanitizer.jl/pull/5",
"source": "security-advisories@github.com"
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"url": "https://github.com/JuliaComputing/HTMLSanitizer.jl/security/advisories/GHSA-3mj7-qxh9-6q4p",
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"vulnStatus": "Deferred",
"weaknesses": [
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"source": "security-advisories@github.com",
"description": [
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"descriptions": [
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"value": "HTMLSanitizer.jl is a Whitelist-based HTML sanitizer. Prior to version 0.2.1, when adding the style tag to the whitelist, content inside the tag is incorrectly unescaped, and closing tags injected as content are interpreted as real HTML, enabling tag injection and JavaScript execution. This could result in possible cross-site scripting (XSS) in any HTML that is sanitized with this library. This issue has been patched in version 0.2.1. A workaround involves adding the math and svg elements to the whitelist manually."
},
{
"lang": "es",
"value": "HTMLSanitizer.jl es un depurador de HTML basado en listas blancas. Antes de la versión 0.2.1, al añadir la etiqueta de estilo a la lista blanca, el contenido dentro de la etiqueta se eliminaba incorrectamente del escape, y las etiquetas de cierre inyectadas como contenido se interpretaban como HTML real, lo que permitía la inyección de etiquetas y la ejecución de JavaScript. Esto podía provocar cross-site scripting (XSS) en cualquier HTML depurado con esta librería. Este problema se ha corregido en la versión 0.2.1. Una solución alternativa consiste en añadir manualmente los elementos math y SVG a la lista blanca."
}
],
"lastModified": "2026-06-17T09:36:40.897",
"sourceIdentifier": "security-advisories@github.com"
}