FKIE_CVE-2025-40934

Vulnerability from fkie_nvd - Published: 2025-11-26 23:15 - Updated: 2025-12-01 15:39
Severity ?
9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
Summary
XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted. An attacker can remove the signature from the XML document to make it pass the verification check. XML-Sig is a Perl module to validate signatures on XML files.  An unsigned XML file should return an error message.  The affected versions return true when attempting to validate an XML file that contains no signatures.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/perl-net-saml2/perl-XML-Sig/issues/63
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/perl-net-saml2/perl-XML-Sig/pull/64
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted.\n\nAn attacker can remove the signature from the XML document to make it pass the verification check.\n\nXML-Sig is a Perl module to validate signatures on XML files.\u00a0 An unsigned XML file should return an error message.\u00a0 The affected versions return true when attempting to validate an XML file that contains no signatures."
    }
  ],
  "id": "CVE-2025-40934",
  "lastModified": "2025-12-01T15:39:33.110",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.7,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-11-26T23:15:47.773",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/perl-net-saml2/perl-XML-Sig/issues/63"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/perl-net-saml2/perl-XML-Sig/pull/64"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}


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