CVE-2026-54644: cubecart v6 · Cross-site Scripting
Affects cubecart v6Source CVE Database V5
Public exploit available (Exploit-DB) · CVSS 6.1 Medium : upgrade to 6.7.5 as a priority.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 59% 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, 2026-09-18.
- Patch
- Available – fixed in 6.7.5
CVSS:3.1/AV:N/AC:L/PR:N/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 - Cross-Site Scripting
, 17 days before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 22 hours 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, the _errorMessage method in classes/gui.class.php uses strip_tags to permit anchor elements in error, information, and warning messages while retaining unsafe href values and onclick event handlers. Attacker-controlled search or input data that reaches a GUI message can carry a javascript: URI or event handler through the filter, and viewing or interacting with the rendered anchor executes JavaScript in the victim's browser session, enabling session exposure or unauthorized application actions. This issue is fixed in version 6.7.5.
Reports on CVE-2026-54644
References
- github.com/cubecart/v6/security/advisories/GHSA-v55x-fh73-29vq (opens in a new tab)
- github.com/cubecart/v6/commit/7c4c0081fd346578a95738f480ef647116ee1c82 (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)