CVE-2026-111311DoubleScale | All-in-One CRM <= 1.5.1 - Authenticated (Subscriber+) Arbitrary File Upload via Portal 'ticketless' Attachment Endpoint
Updated under an hour ago ()
Does this affect you?
It affects samuelgallegos DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.52%, higher than 43% of scored CVEs.
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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.52% (percentile 43)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 16, 2026
Affected products
samuelgallegos DoubleScale CRM | All-in-One CRM – Sales, Multi-Channel Marketing, Newsletter, Booking, Helpdesk, Automation, MCP & More samuelgallegos:doublescale_crm_all_in_one_crm_sales_multi_channel_marketing_newsletter_booking_helpdesk_automation_mcp_and_more (from the name) | through 1.5.1 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0feed03e-fedf-4443-94e0-fbb2c8baba71?source=cve
- https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L112
- https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Core/Services/AttachmentService.php#L446
- https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L574
- https://plugins.trac.wordpress.org/browser/doublescale/tags/1.4.6/includes/Modules/Support/Rest/Controllers/RestPortalController.php#L622
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.