Quick answers
- Is CVE-2026-19803 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19803 being exploited in the wild.
- How severe is CVE-2026-19803?
- Critical severity, with a CVSS score of 9.8, published 7 November 2026.
- Which products and versions are affected?
- Printcart Store – Web to Print Product Designer for WooCommerce up to and including 2.13.2.
- Is there a fix for CVE-2026-19803?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-19803 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-19803?
- Check whether you run Printcart Store – Web to Print Product Designer for WooCommerce at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An unauthenticated AJAX handler (`nbu_crop_image`) accepts a `url` parameter that is concatenated directly to the uploads directory without path normalization, allowing directory traversal via `../` sequences. The output filename and extension are derived from the attacker-controlled path via `pathinfo()`, and the image is written without validation. This requires the `nbdesigner_upload_popup_style` site option set to "Advanced Upload Popup" mode, but the required nonce is publicly obtainable from the upload page.
Affected products
- Printcart Store – Web to Print Product Designer for WooCommerce up to and including 2.13.2
Timeline
- 2026-11-07: disclosed