Vulnerability · Published Sep 17, 2026 · Assigned by GitHub_M

CVE-2026-54645CubeCart: Stored XSS in Product Description Editor via Global Sanitizer Bypass

Medium 4.8

In plain English

A medium-severity cross-site scripting in v6 from cubecart. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)1.1%top 34.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
cubecart	v6	< 6.7.5

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c x_refsource_CONFIRM
https://github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a x_refsource_MISC
https://github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c x_refsource_MISC
https://github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php x_refsource_MISC
https://github.com/cubecart/v6/releases/tag/6.7.5 x_refsource_MISC