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    2 vulnerabilities by wizarrrr

    CVE-2026-108264 (GCVE-0-2026-108264)

    Vulnerability from nvd – Published: 2026-10-09 20:52 – Updated: 2026-10-09 20:52
    VLAI
    Title
    Wizarr: Authenticated Server-Side Template Injection (SSTI) in wizard step rendering leads to Remote Code Execution (RCE)
    Summary
    Wizarr is an advanced user invitation and management system for Jellyfin, Plex, Emby, and other media servers. Prior to 2026.9.1, wizard step Markdown supplied through the editor or imported bundles was evaluated by app/blueprints/wizard/routes.py in the application's non-sandboxed Jinja2 environment with application globals exposed. An authenticated user able to create steps, or an administrator importing an untrusted bundle through POST /settings/wizard/import, could execute arbitrary Python when GET /wizard/{server}/{idx} rendered the stored step; app/jinja_filters.py and app/services/wizard_widgets.py contained additional evaluation sinks. This could execute operating-system commands as the application user, disclose the Flask SECRET_KEY, access connected service credentials and the database, and produce stored cross-site scripting. This issue is fixed in 2026.9.1.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7638 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    wizarrrr wizarr Affected: < 2026.9.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "wizarr",
          "vendor": "wizarrrr",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2026.9.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Wizarr is an advanced user invitation and management system for Jellyfin, Plex, Emby, and other media servers. Prior to 2026.9.1, wizard step Markdown supplied through the editor or imported bundles was evaluated by app/blueprints/wizard/routes.py in the application\u0027s non-sandboxed Jinja2 environment with application globals exposed. An authenticated user able to create steps, or an administrator importing an untrusted bundle through POST /settings/wizard/import, could execute arbitrary Python when GET /wizard/{server}/{idx} rendered the stored step; app/jinja_filters.py and app/services/wizard_widgets.py contained additional evaluation sinks. This could execute operating-system commands as the application user, disclose the Flask SECRET_KEY, access connected service credentials and the database, and produce stored cross-site scripting. This issue is fixed in 2026.9.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T20:52:19.351Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3"
        },
        {
          "name": "https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7"
        },
        {
          "name": "https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1"
        }
      ],
      "source": {
        "advisory": "GHSA-h9rv-mxh2-35f3",
        "discovery": "UNKNOWN"
      },
      "title": "Wizarr: Authenticated Server-Side Template Injection (SSTI) in wizard step rendering leads to Remote Code Execution (RCE)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108264",
    "datePublished": "2026-10-09T20:52:19.351Z",
    "dateReserved": "2026-10-09T17:33:15.410Z",
    "dateUpdated": "2026-10-09T20:52:19.351Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-108264 (GCVE-0-2026-108264)

    Vulnerability from cvelistv5 – Published: 2026-10-09 20:52 – Updated: 2026-10-09 20:52
    VLAI
    Title
    Wizarr: Authenticated Server-Side Template Injection (SSTI) in wizard step rendering leads to Remote Code Execution (RCE)
    Summary
    Wizarr is an advanced user invitation and management system for Jellyfin, Plex, Emby, and other media servers. Prior to 2026.9.1, wizard step Markdown supplied through the editor or imported bundles was evaluated by app/blueprints/wizard/routes.py in the application's non-sandboxed Jinja2 environment with application globals exposed. An authenticated user able to create steps, or an administrator importing an untrusted bundle through POST /settings/wizard/import, could execute arbitrary Python when GET /wizard/{server}/{idx} rendered the stored step; app/jinja_filters.py and app/services/wizard_widgets.py contained additional evaluation sinks. This could execute operating-system commands as the application user, disclose the Flask SECRET_KEY, access connected service credentials and the database, and produce stored cross-site scripting. This issue is fixed in 2026.9.1.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
    CWE
    • CWE-1336 - Improper Neutralization of Special Elements Used in a Template Engine
    Assigner
    GitHub_M CNA under the mitre root
    CNA scorecard C 72/100 over 7638 records in the last 180 days details
    References
    Impacted products
    Vendor Product Version
    wizarrrr wizarr Affected: < 2026.9.1
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "wizarr",
          "vendor": "wizarrrr",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2026.9.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Wizarr is an advanced user invitation and management system for Jellyfin, Plex, Emby, and other media servers. Prior to 2026.9.1, wizard step Markdown supplied through the editor or imported bundles was evaluated by app/blueprints/wizard/routes.py in the application\u0027s non-sandboxed Jinja2 environment with application globals exposed. An authenticated user able to create steps, or an administrator importing an untrusted bundle through POST /settings/wizard/import, could execute arbitrary Python when GET /wizard/{server}/{idx} rendered the stored step; app/jinja_filters.py and app/services/wizard_widgets.py contained additional evaluation sinks. This could execute operating-system commands as the application user, disclose the Flask SECRET_KEY, access connected service credentials and the database, and produce stored cross-site scripting. This issue is fixed in 2026.9.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1336",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-09T20:52:19.351Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/wizarrrr/wizarr/security/advisories/GHSA-h9rv-mxh2-35f3"
        },
        {
          "name": "https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/wizarrrr/wizarr/commit/6aa3c33c1b3d945e055ef116cc531028b3735bb7"
        },
        {
          "name": "https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/wizarrrr/wizarr/releases/tag/v2026.9.1"
        }
      ],
      "source": {
        "advisory": "GHSA-h9rv-mxh2-35f3",
        "discovery": "UNKNOWN"
      },
      "title": "Wizarr: Authenticated Server-Side Template Injection (SSTI) in wizard step rendering leads to Remote Code Execution (RCE)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-108264",
    "datePublished": "2026-10-09T20:52:19.351Z",
    "dateReserved": "2026-10-09T17:33:15.410Z",
    "dateUpdated": "2026-10-09T20:52:19.351Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}