Quick answers
- Is CVE-2026-93388 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-93388 being exploited in the wild.
- How severe is CVE-2026-93388?
- Critical severity, with a CVSS score of 9.8, published 14 October 2026.
- Which products and versions are affected?
- Printcart Store (PCDesigner / NB Designer) up to 2.9.1.
- Is there a fix for CVE-2026-93388?
- Yes: fixed in 2.9.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-93388 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-93388?
- Check whether you run Printcart Store (PCDesigner / NB Designer) 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.
How to fix
- Fixed in: 2.9.2
Technical details
The nbdesigner_copy_image_from_url AJAX action is accessible to unauthenticated users and improperly validates file uploads from Google Drive. The vulnerability bypasses file type restrictions by rebuilding the destination filename from the attacker-supplied gapi[name] parameter, allowing .php files to be written to the web-accessible wp-content/uploads/nbdesigner/temp/ directory. The required nonce is also freely issued to anonymous callers, eliminating any CSRF protection.
Affected products
- Printcart Store (PCDesigner / NB Designer) up to 2.9.1
Timeline
- 2026-10-14: disclosed