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CVE-2023-3550

Estado: ModificadaCrítica (9)—

Mediawiki v1.40.0 does not validate namespaces used in XML files.

Therefore, if the instance administrator allows XML file uploads,

a remote attacker with a low-privileged user account can use this

exploit to become an administrator by sending a malicious link to

the instance administrator.

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 (2)

Debian — Debian LinuxMediawiki — Mediawiki

CWE

Referencias

JSON original (NVD)

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      "source": "help@fluidattacks.com",
      "description": [
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      "value": "Mediawiki v1.40.0 does not validate namespaces used in XML files.\n\nTherefore, if the instance administrator allows XML file uploads,\n\na remote attacker with a low-privileged user account can use this\n\nexploit to become an administrator by sending a malicious link to\n\nthe instance administrator."
    },
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    }
  ],
  "lastModified": "2026-06-17T06:14:19.590",
  "configurations": [
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        {
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}