CVE-2025-45388
Wagtail CMS 6.4.1 is vulnerable to a Stored Cross-Site Scripting (XSS) in the document upload functionality. Attackers can inject malicious code inside a PDF file. When a user clicks the document in the CMS interface, the payload executes. NOTE: this is disputed by the Supplier because "It has been well documented that when serving uploaded files using a method outside of Wagtail (which admittedly is the default), it requires additional configuration from the developer, because Wagtail cannot control how these are served. ... For example, if a Wagtail instance is configured to upload files into AWS S3, Wagtail cannot control the permissions on how they're served, nor any headers used when serving them (a limitation of S3)."
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Puntuación base: 6.1
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.31%
- Percentil entre todas las CVEs puntuadas: 22
- Fecha de la puntuación: 5/10/2026
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
- https://docs.wagtail.org/en/stable/deployment/under_the_hood.html#documents
- https://github.com/echoBRT/Wagtail-CMS-XSS/
- https://github.com/wagtail/wagtail/discussions/12617
- https://github.com/wagtail/wagtail/pull/12672
- https://github.com/wagtail/wagtail/wiki/Security-team
- https://github.com/echoBRT/Wagtail-CMS-XSS/
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-45388",
"cveTags": [
{
"tags": [
"disputed"
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"sourceIdentifier": "cve@mitre.org"
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"metrics": {
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{
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"id": "CVE-2025-45388",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-05-08T15:12:38.265952Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
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"cvssData": {
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"baseScore": 6.1,
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.8
}
]
},
"affected": [
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"source": "cve@mitre.org",
"affectedData": [
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"versions": [
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"published": "2025-05-07T19:16:08.680",
"references": [
{
"url": "https://docs.wagtail.org/en/stable/deployment/under_the_hood.html#documents",
"source": "cve@mitre.org"
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{
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"description": [
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"descriptions": [
{
"lang": "en",
"value": "Wagtail CMS 6.4.1 is vulnerable to a Stored Cross-Site Scripting (XSS) in the document upload functionality. Attackers can inject malicious code inside a PDF file. When a user clicks the document in the CMS interface, the payload executes. NOTE: this is disputed by the Supplier because \"It has been well documented that when serving uploaded files using a method outside of Wagtail (which admittedly is the default), it requires additional configuration from the developer, because Wagtail cannot control how these are served. ... For example, if a Wagtail instance is configured to upload files into AWS S3, Wagtail cannot control the permissions on how they're served, nor any headers used when serving them (a limitation of S3).\""
},
{
"lang": "es",
"value": "Wagtail CMS 6.4.1 es vulnerable a un ataque de Cross-Site Scripting (XSS) almacenado en la función de carga de documentos. Los atacantes pueden inyectar código malicioso en un archivo PDF. Cuando un usuario hace clic en el documento en la interfaz del CMS, se ejecuta el payload."
}
],
"lastModified": "2026-06-17T09:25:30.240",
"sourceIdentifier": "cve@mitre.org"
}