XSS in Cubecart V6
CVE-2026-54645
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.011 (65.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Cubecart V6 — versions < 6.7.5
Weakness classification (CWE)
References
- github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php
- github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a
- github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c
- github.com/cubecart/v6/releases/tag/6.7.5
- github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c
Frequently asked questions
- What is CVE-2026-54645?
- CVE-2026-54645 is a medium-severity vulnerability in Cubecart V6, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2026-09-17.
- How severe is CVE-2026-54645?
- Medium severity. CVSS v3 base score is 4.8 out of 10.