CVE-2026-19803 (GCVE-0-2026-19803)
Vulnerability from cvelistv5 – Published: 2026-11-07 03:28 – Updated: 2026-11-07 03:28
VLAI
EPSS
VEX
Title
Printcart Store <= 2.13.2 - Unauthenticated Arbitrary File Upload via nbu_crop_image 'url' Parameter
Summary
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.
Severity
9.8 (Critical)
CWE
- CWE-94 - Improper Control of Generation of Code
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| printcart | Printcart Store – Web to Print Product Designer for WooCommerce |
Affected:
0 , ≤ 2.13.2
(semver)
|
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Printcart Store \u2013 Web to Print Product Designer for WooCommerce",
"vendor": "printcart",
"versions": [
{
"lessThanOrEqual": "2.13.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
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"value": "The Printcart Store \u2013 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 \u2014 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."
}
],
"metrics": [
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"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "CWE-94 Improper Control of Generation of Code",
"lang": "en",
"type": "CWE"
}
]
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],
"providerMetadata": {
"dateUpdated": "2026-11-07T03:28:04.940Z",
"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"shortName": "Wordfence"
},
"references": [
{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2525ed97-b701-4f95-8d8c-202e816723c5?source=cve"
},
{
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L284"
},
{
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L272"
},
{
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class-util.php#L165"
},
{
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L56"
},
{
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class-util.php#L586"
},
{
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3747660%40printcart-integration\u0026new=3747660%40printcart-integration"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-11-06T15:17:27.000Z",
"value": "Disclosed"
}
],
"title": "Printcart Store \u003c= 2.13.2 - Unauthenticated Arbitrary File Upload via nbu_crop_image \u0027url\u0027 Parameter"
}
},
"cveMetadata": {
"assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
"assignerShortName": "Wordfence",
"cveId": "CVE-2026-19803",
"datePublished": "2026-11-07T03:28:04.940Z",
"dateReserved": "2026-08-13T20:32:02.319Z",
"dateUpdated": "2026-11-07T03:28:04.940Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-19803",
"date": "2026-11-07",
"epss": "0.00962",
"percentile": "0.61819"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Printcart Store \u2013 Web to Print Product Designer for WooCommerce",
"vendor": "printcart",
"versions": [
{
"lessThanOrEqual": "2.13.2",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"source": "security@wordfence.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Printcart Store \u2013 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 \u2014 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."
}
],
"id": "CVE-2026-19803",
"lastModified": "2026-11-07T04:17:29.377",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "security@wordfence.com",
"type": "Primary"
}
]
},
"published": "2026-11-07T04:17:29.233",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class-util.php#L165"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class-util.php#L586"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L272"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L284"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/printcart-integration/tags/2.8.4/includes/class.advanced.upload.php#L56"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3747660%40printcart-integration\u0026new=3747660%40printcart-integration"
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/2525ed97-b701-4f95-8d8c-202e816723c5?source=cve"
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],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
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"value": "CWE-94"
}
],
"source": "security@wordfence.com",
"type": "Primary"
}
]
}
}
}
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.