Vulnerability-Lookup

CVE-2026-111311 (GCVE-0-2026-111311)

Vulnerability from cvelistv5 – Published: 2026-10-16 08:27 – Updated: 2026-10-16 14:14

Title

DoubleScale | All-in-One CRM <= 1.5.1 - Authenticated (Subscriber+) Arbitrary File Upload via Portal 'ticketless' Attachment Endpoint

Summary

The DoubleScale | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.5.1 via the store_upload function. This is due to a fail-open extension allow-list in extension_is_allowed() that returns true when wp_check_filetype() yields an empty type for unrecognized extensions such as .php, combined with magic-byte-only MIME detection and no capability check beyond is_user_logged_in(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. Exploitation requires the Helpdesk module to be enabled, as the vulnerable REST endpoint is only registered when that module is active.

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 2026-10-16 14:13 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

Wordfence CNA under the mitre root

CNA scorecard C 65/100 over 2287 records in the last 180 days details

References

5 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/double…
https://plugins.trac.wordpress.org/browser/double…
https://plugins.trac.wordpress.org/browser/double…
https://plugins.trac.wordpress.org/browser/double…

Impacted products

1 product

Vendor	Product	Version	CPE status
samuelgallegos	DoubleScale CRM \| All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More	Affected: 0 , ≤ 1.5.1 (semver)	guessed

Credits

wachirapong kamphapong (wachiss)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-111311

Vulnerability from fkie_nvd - Published: 2026-10-16 09:17 - Updated: 2026-10-16 14:51

Severity

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L112
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L446
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L574
	security@wordfence.com	https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L622
	security@wordfence.com	https://www.wordfence.com/threat-intel/vulnerabilities/id/0feed03e-fedf-4443-94e0-fbb2c8baba71?source=cve

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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}

GHSA-RV9X-W2PF-2F69

Vulnerability from github – Published: 2026-10-16 09:30 – Updated: 2026-10-16 09:30

Details

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-2026-111311"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-16T09:17:04Z",
    "severity": "HIGH"
  },
  "details": "The DoubleScale | All-in-One CRM \u2013 Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP \u0026 More plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.5.1 via the store_upload function. This is due to a fail-open extension allow-list in extension_is_allowed() that returns true when wp_check_filetype() yields an empty type for unrecognized extensions such as .php, combined with magic-byte-only MIME detection and no capability check beyond is_user_logged_in(). This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. Exploitation requires the Helpdesk module to be enabled, as the vulnerable REST endpoint is only registered when that module is active.",
  "id": "GHSA-rv9x-w2pf-2f69",
  "modified": "2026-10-16T09:30:30Z",
  "published": "2026-10-16T09:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111311"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L112"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L446"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L574"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L622"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0feed03e-fedf-4443-94e0-fbb2c8baba71?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"
    }
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CVE-2026-111311 (GCVE-0-2026-111311)

FKIE_CVE-2026-111311

GHSA-RV9X-W2PF-2F69

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour