Vulnerability-Lookup

GHSA-WQQC-79QG-345Q

Vulnerability from github – Published: 2026-08-15 12:30 – Updated: 2026-08-15 12:30

Details

The Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud! plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.7.1 via the fetch_remote_file function. This is due to a filename validation/destination mismatch in fetch_remote_file, where file type validation is performed against the attacker-controlled Content-Disposition filename rather than the URL-path-derived destination filename. This makes it possible for authenticated attackers, with contributor-level access and above, to execute code on the server. A GIF+PHP polyglot file passes wp_check_filetype_and_ext validation as image/gif via the Content-Disposition filename, while the actual destination path is written with a .php extension derived from the URL path, bypassing the unfiltered_upload capability gate entirely. The affected endpoints are reachable at this privilege level because Templately's entire REST API — including the cloud import endpoints used in this attack (/templately/v1/clouds/upload and /templately/v1/insert) — is authorized only by a current_user_can('delete_posts') check, with no administrator or manage_options capability requirement. The same permission gate also allows a contributor to overwrite the site's global Templately cloud connection via the /templately/v1/login endpoint with global_signin set to true. A complete remediation should both correct fetch_remote_file to validate the file type against the actual destination filename rather than the Content-Disposition header (and avoid deriving the write path from the request URL), and restrict state-changing Templately REST routes to an appropriate administrator-level capability.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18438"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T10:16:29Z",
    "severity": "HIGH"
  },
  "details": "The Templately \u2013 Elementor \u0026 Gutenberg Template Library: 6500+ Free \u0026 Pro Ready Templates And Cloud! plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.7.1 via the fetch_remote_file function. This is due to a filename validation/destination mismatch in fetch_remote_file, where file type validation is performed against the attacker-controlled Content-Disposition filename rather than the URL-path-derived destination filename. This makes it possible for authenticated attackers, with contributor-level access and above, to execute code on the server. A GIF+PHP polyglot file passes wp_check_filetype_and_ext validation as image/gif via the Content-Disposition filename, while the actual destination path is written with a .php extension derived from the URL path, bypassing the unfiltered_upload capability gate entirely. The affected endpoints are reachable at this privilege level because Templately\u0027s entire REST API \u2014 including the cloud import endpoints used in this attack (/templately/v1/clouds/upload and /templately/v1/insert) \u2014 is authorized only by a current_user_can(\u0027delete_posts\u0027) check, with no administrator or manage_options capability requirement. The same permission gate also allows a contributor to overwrite the site\u0027s global Templately cloud connection via the /templately/v1/login endpoint with global_signin set to true. A complete remediation should both correct fetch_remote_file to validate the file type against the actual destination filename rather than the Content-Disposition header (and avoid deriving the write path from the request URL), and restrict state-changing Templately REST routes to an appropriate administrator-level capability.",
  "id": "GHSA-wqqc-79qg-345q",
  "modified": "2026-08-15T12:30:19Z",
  "published": "2026-08-15T12:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18438"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/API.php#L128"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/Import.php#L78"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/MyClouds.php#L103"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1200"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1391"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1423"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Platform/Gutenberg.php#L177"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/API.php#L128"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/Import.php#L78"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/MyClouds.php#L103"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Importer/WPImport.php#L1200"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Importer/WPImport.php#L1391"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Importer/WPImport.php#L1423"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Platform/Gutenberg.php#L177"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3636643/templately/trunk/includes/Core/Importer/WPImport.php"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ftemplately/tags/3.7.1\u0026new_path=%2Ftemplately/tags/3.7.2"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3636643%40templately%2Ftags%2F3.7.2\u0026old=3624408%40templately%2Ftags%2F3.7.1"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4e68b2f2-12e4-4ff2-919d-26d6b21acd03?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-18438 (GCVE-0-2026-18438)

Vulnerability from cvelistv5 – Published: 2026-08-15 09:25 – Updated: 2026-08-17 19:38

Title

Templately <= 3.7.1 - Authenticated (Contributor+) Arbitrary File Upload to Remote Code Execution via Gutenberg Cloud Import Attachment Filename Mismatch

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-17 19:26 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

Wordfence mitre root

References

18 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/browser/templa…
https://plugins.trac.wordpress.org/changeset?repo…
https://plugins.trac.wordpress.org/changeset/3636…
https://plugins.trac.wordpress.org/changeset?old_…

Impacted products

1 product

Vendor	Product	Version
wpdevteam	Templately – Elementor & Gutenberg Template Library: 6500+ Free & Pro Ready Templates And Cloud!	Affected: 0 , ≤ 3.7.1 (semver)

Credits

Dmitrii Ignatyev

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-18438",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-17T19:26:10.332711Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-17T19:38:56.823Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Templately \u2013 Elementor \u0026 Gutenberg Template Library: 6500+ Free \u0026 Pro Ready Templates And Cloud!",
          "vendor": "wpdevteam",
          "versions": [
            {
              "lessThanOrEqual": "3.7.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dmitrii Ignatyev"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Templately \u2013 Elementor \u0026 Gutenberg Template Library: 6500+ Free \u0026 Pro Ready Templates And Cloud! plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.7.1 via the fetch_remote_file function. This is due to a filename validation/destination mismatch in fetch_remote_file, where file type validation is performed against the attacker-controlled Content-Disposition filename rather than the URL-path-derived destination filename. This makes it possible for authenticated attackers, with contributor-level access and above, to execute code on the server. A GIF+PHP polyglot file passes wp_check_filetype_and_ext validation as image/gif via the Content-Disposition filename, while the actual destination path is written with a .php extension derived from the URL path, bypassing the unfiltered_upload capability gate entirely. The affected endpoints are reachable at this privilege level because Templately\u0027s entire REST API \u2014 including the cloud import endpoints used in this attack (/templately/v1/clouds/upload and /templately/v1/insert) \u2014 is authorized only by a current_user_can(\u0027delete_posts\u0027) check, with no administrator or manage_options capability requirement. The same permission gate also allows a contributor to overwrite the site\u0027s global Templately cloud connection via the /templately/v1/login endpoint with global_signin set to true. A complete remediation should both correct fetch_remote_file to validate the file type against the actual destination filename rather than the Content-Disposition header (and avoid deriving the write path from the request URL), and restrict state-changing Templately REST routes to an appropriate administrator-level capability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "cweId": "CWE-434",
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      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4e68b2f2-12e4-4ff2-919d-26d6b21acd03?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Importer/WPImport.php#L1423"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Importer/WPImport.php#L1200"
        },
        {
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        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/Core/Platform/Gutenberg.php#L177"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/Import.php#L78"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/MyClouds.php#L103"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.7.1/includes/API/API.php#L128"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1423"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1200"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Importer/WPImport.php#L1391"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/Core/Platform/Gutenberg.php#L177"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/Import.php#L78"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/MyClouds.php#L103"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/templately/tags/3.6.5/includes/API/API.php#L128"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3636643%40templately%2Ftags%2F3.7.2\u0026old=3624408%40templately%2Ftags%2F3.7.1"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3636643/templately/trunk/includes/Core/Importer/WPImport.php"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Ftemplately/tags/3.7.1\u0026new_path=%2Ftemplately/tags/3.7.2"
        }
      ],
      "timeline": [
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          "time": "2026-07-30T20:38:18.000Z",
          "value": "Vendor Notified"
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          "lang": "en",
          "time": "2026-08-14T20:45:28.000Z",
          "value": "Disclosed"
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      "title": "Templately \u003c= 3.7.1 - Authenticated (Contributor+) Arbitrary File Upload to Remote Code Execution via Gutenberg Cloud Import Attachment Filename Mismatch"
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    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-18438",
    "datePublished": "2026-08-15T09:25:18.170Z",
    "dateReserved": "2026-07-30T20:22:04.692Z",
    "dateUpdated": "2026-08-17T19:38:56.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-WQQC-79QG-345Q

CVE-2026-18438 (GCVE-0-2026-18438)

Tags

Sightings

Nomenclature