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CVE-2026-8500

Full vulnerability record from the local CVENow database.

Description

Web::Passwd versions through 0.03 for Perl is vulnerable to RCE. Web::Passwd is a small CGI application for managing htpasswd files using the htpasswd command. The user parameter is not validated or escaped, and is used as the last argument on the command line, allowing for command injection.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Deferred
Source identifier
9b29abf9-4ab0-4765-b253-1875cd9b441e
Published
2026-05-13 23:16:43.237000
Last modified
2026-10-26 14:10:00.130000
View original CVE JSON
{
  "id": "CVE-2026-8500",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-05-13T23:16:43.237",
  "lastModified": "2026-10-26T14:10:00.130",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Web::Passwd versions through 0.03 for Perl is vulnerable to RCE.\n\nWeb::Passwd is a small CGI application for managing htpasswd files using the htpasswd command.\n\nThe user parameter is not validated or escaped, and is used as the last argument on the command line, allowing for command injection."
    },
    {
      "lang": "es",
      "value": "Las versiones de Web::Passwd hasta la 0.03 para Perl son vulnerables a RCE.\nWeb::Passwd es una pequeña aplicación CGI para gestionar archivos htpasswd utilizando el comando htpasswd.\nEl parámetro user no se valida ni se escapa, y se utiliza como el último argumento en la línea de comandos, lo que permite la inyección de comandos."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "EVANK",
          "product": "Web::Passwd",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Web-Passwd",
          "programFiles": [
            "lib/Web/Passwd.pm"
          ],
          "programRoutines": [
            {
              "name": "Web::Passwd::htfile_moduser"
            },
            {
              "name": "Web::Passwd::htfile_deluser"
            }
          ],
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "0.03",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-14T17:41:43.944259Z",
          "id": "CVE-2026-8500",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://httpd.apache.org/docs/current/programs/htpasswd.html",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/EVANK/Web-Passwd-0.03",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/05/13/8",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}