Is there a public exploit for CVE-2026-19803?

No public exploit for CVE-2026-19803 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-19803?

CVE-2026-19803 scores CVSS 9.8 (v3.1), rated critical.

What does CVE-2026-19803 affect?

CVE-2026-19803 affects printcart Printcart Store – Web to Print Product Designer for WooCommerce.

9.8 Critical

The Printcart Store – Web to Print Product Designer for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all…

CVE-2026-19803

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 nbucropimage AJAX handler accepting a user-supplied url parameter that NbdesignerIO::converturltopath() 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 nbdesigneruploadpopupstyle 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.

Assessment

CVSS: 9.8 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 7 November 2026
Last updated: 7 November 2026
Affected: printcart · Printcart Store – Web to Print Product Designer for WooCommerce
Assigner: Wordfence

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

At the source

EUVD (ENISA)

References

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