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Critical 9.1Published May 13, 2026

CVE-2026-44377CubeCart: Server-Side Template Injection (SSTI) in Smarty Templates leading to RCE

Updated under an hour ago ()

Does this affect you?

It affects cubecart v6. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-94, CWE-1336
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Deferred
Record last updated
May 14, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
cubecart v6
cubecart:v6 (from the name)
before 6.7.0
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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