Medium severity · published Sep 17, 2026
CVE-2026-54645
CubeCart: Stored XSS in Product Description Editor via Global Sanitizer Bypass
4.8
CVSS
1.1%
EPSS
No
On KEV
Description
CubeCart is an ecommerce software solution. Prior to 6.7.5, admin/sources/products.index.inc.php reads the description, description_short, and spec_copy rich-text fields from $GLOBALS['RAW']['POST'] and removes only script elements before the values are stored and rendered through Smarty templates. An administrator with product-editing rights can store event-handler attributes, SVG content, or javascript: URIs that bypass this filter, causing persistent JavaScript execution when a storefront visitor or another administrator views the product content and enabling session exposure or unauthorized browser-context actions. This issue is fixed in version 6.7.5.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
V6
v6 · cubecart
< 6.7.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-54645
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-54645
github.com
https://github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php
github.com
https://github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a
github.com
https://github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c
github.com
https://github.com/cubecart/v6/releases/tag/6.7.5
github.com
https://github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c
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