{
  "cveId": "CVE-2023-50262",
  "url": "https://patchblox.com/security/cve/CVE-2023-50262",
  "summary": "CVE-2023-50262 is fixed in php-dompdf on 1 platform by DEBIAN-CVE-2023-50262 (version 2.0.3\u002Bdfsg-1\u002Bdeb12u1), released December 13, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "php-dompdf: Dompdf is an HTML to PDF converter for PHP",
  "description": "Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, prior to version 2.0.4, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.  php-svg-lib, when run in isolation, does not support SVG references for \u0060image\u0060 elements. However, when used in combination with Dompdf, php-svg-lib will process SVG images referenced by an \u0060image\u0060 element. Dompdf currently includes validation to prevent self-referential \u0060image\u0060 references, but a chained reference is not checked. A malicious actor may thus trigger infinite recursion by chaining references between two or more SVG images.  When Dompdf parses a malicious payload, it will crash due after exceeding the allowed execution time or memory usage. An attacker sending multiple request to a system can potentially cause resource exhaustion to the point that the system is unable to handle incoming request.  Version 2.0.4 contains a fix for this issue.",
  "published": "2023-12-13T21:15:09Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.01463,
  "epssPercentile": 0.7378,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "php-dompdf",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.0.3\u002Bdfsg-1\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2023-50262",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-50262",
      "released": "2023-12-13T21:15:09Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}