CVE-2026-54645: cubecart v6 · Cross-site Scripting
Affects cubecart v6Source CVE Database V5
Public exploit available (Exploit-DB) · CVSS 4.8 Medium : upgrade to 6.7.5 as a priority.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 1.0% chance of exploitation in 30 days – higher than 64% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- CISA SSVC
- Exploitation
- Proof of concept is public or traded
- Automatable
- Attackers cannot reliably automate steps 1–4 of the kill chain
- Technical impact
- Limited control over the software or limited information exposure
CISA SSVC assessment, 2026-09-22.
- Patch
- Available – fixed in 6.7.5
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by GitHub, Inc.
, 94 days before disclosure
First Exploit-DB entry (opens in a new tab)
CubeCart 6.7.4 - Stored XSS
, 17 days before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 5 days after disclosure
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade cubecart v6 to 6.7.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| cubecartv6 | Affected
| Fixed in
|
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.
Reports on CVE-2026-54645
References
- github.com/cubecart/v6/security/advisories/GHSA-43f6-gfcf-wj9c (opens in a new tab)
- github.com/cubecart/v6/commit/bd2dcdcc7da55a3731fe288b54cac8bfa3d9142a (opens in a new tab)
- github.com/cubecart/v6/commit/f7abe7484691a33abcbc0806fca59d605024a75c (opens in a new tab)
- github.com/cubecart/v6/blob/6.7.5/admin/sources/release_notes/6.7.5.inc.php (opens in a new tab)
- github.com/cubecart/v6/releases/tag/6.7.5 (opens in a new tab)