ghsa-4pqg-hr8r-h5cw
Vulnerability from github
Published
2023-09-25 18:30
Modified
2024-06-10 18:30
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Summary
MediaWiki malicious XML upload leads to privilege escalation
Details

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.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "mediawiki/core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.40.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-3550"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-25T16:15:14Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-4pqg-hr8r-h5cw",
  "modified": "2024-06-10T18:30:50Z",
  "published": "2023-09-25T18:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-3550"
    },
    {
      "type": "WEB",
      "url": "https://fluidattacks.com/advisories/blondie"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2023/11/msg00027.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU2FGUXXK6TMV6R52VRECLC6XCSQQISY"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2023/dsa-5520"
    },
    {
      "type": "WEB",
      "url": "https://www.mediawiki.org/wiki/MediaWiki"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "MediaWiki malicious XML upload leads to privilege escalation "
}


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