Printcart Store <= 2.13.2 - Unauthenticated Arbitrary File Upload via nbu_crop_image 'url' Parameter
- Exploited
- No known exploitation
- Fix
- No fix listed
- Who is exposed
- Not reported
- Last modified
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.96% · 61st percentile
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 32/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Printcart Store – Web to Print Product Designer plugin for WordPress and WooCommerce lets a remote attacker upload files without logging in, writing them to locations outside the uploads directory. Because the attacker can place PHP code there, they can achieve remote code execution once that file is requested.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original 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.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity9.8/10CVSS 9.8
- No patch5/5No patch listed yet
What would change the score
- Would score about 77 if added to CISA KEV
- Would score about 72 if CISA's SSVC rates exploitation active
- Would score about 37 if advisories confirm default setups are exposed
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- printcart Printcart Store – Web to Print Product Designer for WooCommerce
through 2.13.2
Evidence 7
- Link
- Link
- Link
- Link
- Link
Corrections
None so far.
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Questions about CVE-2026-19803
Is CVE-2026-19803 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-19803?
Printcart Store – Web to Print Product Designer for WooCommerce: through 2.13.2.Source: cve.now feed data