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CVE-2026-44377

CubeCart: Server-Side Template Injection (SSTI) in Smarty Templates leading to RCE

Published: May 13, 2026Updated: May 14, 2026 Sources: CVE List NVDCWE-94
NVD MITRE
9.1CVSSCRITICAL
EPSS Score
0.7%
Top 50.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

CubeCart is an ecommerce software solution. Prior to 6.7.0, an Authenticated Server-Side Template Injection (SSTI) vulnerability exists in multiple modules of CubeCart (including Email Templates and Documents). The application unsafely evaluates user-supplied input directly through the Smarty template engine. By leveraging this, an authenticated attacker with administrative privileges can bypass current restrictions and call native PHP functions within the templates, such as readgzfile() to read sensitive configuration files, or error_log() to write a malicious PHP web shell, ultimately achieving Information Disclosure and full Remote Code Execution (RCE). This vulnerability is fixed in 6.7.0.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94CWE-1336

Affected Products

v6cubecart
On-prem
Web & CMS Plugins / ecommerce-platform
cubecartcommercialWeb & CMS Plugins

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/cubecart/v6/commit/76d783c8c4d87a8a90dbfef1344a2733e7c6434c
github.com
https://github.com/cubecart/v6/security/advisories/GHSA-wpjx-g695-qc5j
github.com

Timeline

Published
May 13, 2026
Last Updated
May 14, 2026

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