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CVE-2025-45055

Estado: AnalizadaMedia (5.4)—

Silverpeas 6.4.2 contains a stored cross-site scripting (XSS) vulnerability in the event management module. An authenticated user can upload a malicious SVG file as an event attachment, which, when viewed by an administrator, executes embedded JavaScript in the admin's session. This allows attackers to escalate privileges by creating a new administrator account. The vulnerability arises from insufficient sanitization of SVG files and weak CSRF protections.

CVSS

Probabilidad de explotación (EPSS)

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)

Silverpeas — Silverpeas

CWE

Referencias

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  "id": "CVE-2025-45055",
  "cveTags": [],
  "metrics": {
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-06-09T19:44:32.937328Z"
        }
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    "cvssMetricV31": [
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        "cvssData": {
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          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
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  "affected": [
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  "published": "2025-06-09T16:15:40.693",
  "references": [
    {
      "url": "https://github.com/Silverpeas/Silverpeas-Core/pull/1394",
      "tags": [
        "Patch"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://medium.com/@mingihongkim/privilege-escalation-via-svg-injection-in-silverpeas-6-4-2-b5ab1d5b6955",
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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          "value": "CWE-79"
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      "lang": "en",
      "value": "Silverpeas 6.4.2 contains a stored cross-site scripting (XSS) vulnerability in the event management module. An authenticated user can upload a malicious SVG file as an event attachment, which, when viewed by an administrator, executes embedded JavaScript in the admin's session. This allows attackers to escalate privileges by creating a new administrator account. The vulnerability arises from insufficient sanitization of SVG files and weak CSRF protections."
    },
    {
      "lang": "es",
      "value": "Silverpeas 6.4.2 contiene una vulnerabilidad de cross-site scripting (XSS) almacenado en el módulo de gestión de eventos. Un usuario autenticado puede subir un archivo SVG malicioso como adjunto a un evento, el cual, al ser visto por un administrador, ejecuta JavaScript incrustado en su sesión. Esto permite a los atacantes escalar privilegios creando una nueva cuenta de administrador. La vulnerabilidad se debe a una limpieza insuficiente de los archivos SVG y a una protección CSRF deficiente."
    }
  ],
  "lastModified": "2026-06-17T09:25:22.223",
  "configurations": [
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  "sourceIdentifier": "cve@mitre.org"
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