CVE-2026-19803

9.8

Printcart Store - Web to Print Product Designer for WooCommerce Code Injection Vulnerability

CVSS: 9.8, critical critical CVSS v3.1
EPSS, next 30 days: 1% higher than 61.8% of scored CVEs
Exploitation: No public evidence
Published: 7 Nov 2026yesterday

Description

The Printcart Store - Web to Print Product Designer for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.13.2. This is due to the `nbu_crop_image` AJAX handler accepting a user-supplied `url` parameter that `Nbdesigner_IO::convert_url_to_path()` concatenates onto the uploads base directory without normalizing or stripping `../` sequences, and then deriving both the output directory and output file extension via `pathinfo()` from the same attacker-controlled path, with no `stripImage()` call before `writeImage()` is invoked. This makes it possible for unauthenticated attackers to write attacker-controlled PHP content to arbitrary locations outside the uploads directory, resulting in remote code execution when the written file is subsequently requested. This vulnerability is only exploitable when the `nbdesigner_upload_popup_style` site option is set to `a` (Advanced Upload Popup), which causes the handler to be registered for unauthenticated requests; however, the required `save-design` nonce is printed on the fully public frontend `upload-design-file` page, making it trivially obtainable by any anonymous visitor once that configuration is active.

Details

Vendor: Printcart
Product: Printcart Store - Web to Print Product Designer for WooCommerce
Weakness: CWE-94 (opens in a new tab)
Status: Deferred
Updated: 7 Nov 2026
Assigner: security@wordfence.com

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

References 7

Other references 7

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Printcart CVEs

Every Printcart CVE we hold

Same vendor in what we hold, not a known link between the flaws.

CVE-2026-93388 Printcart Store - Web to Print Product Designer for WooCommerce Unrestricted Upload of File with Dangerous Type Vulnerability EPSS 0.9% 9.8, critical

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Is CVE-2026-19803 in your network?

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EXYS7600 OCELOT

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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 8 Nov 2026, not the live upstream state.