CVE-2026-44377Public exploitNetwork attack vector

Administrative RCE via incomplete Smarty function denylist

Published May 13, 2026 · Updated May 13, 2026

Server-side template injection in CubeCart before 6.7.0 allows remote authenticated users with administrative privileges to execute PHP functions. The Smarty security policy leaves error_log() and readgzfile() callable when administrator-controlled Email Templates or Documents are evaluated as templates. Administrative access is required; crafted templates can read configuration data or write a PHP web shell that executes operating-system commands.

CVSS severity9.1
Critical
EPSS probability0.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in CubeCart before 6.7.0 allows remote authenticated users with administrative privileges to execute PHP functions. The Smarty security policy leaves error_log() and readgzfile() callable when administrator-controlled Email Templates or Documents are evaluated as templates. Administrative access is required; crafted templates can read configuration data or write a PHP web shell that executes operating-system commands.

The record

CVE
CVE-2026-44377
Published
May 13, 2026
Updated
May 13, 2026
Vendor
CubeCart Limited
Product
CubeCart
Classifications
CWE-1336, CWE-94, T1505.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 13, 2026CVE publishedPublication date reported by the CVE source.
  2. May 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 6.7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

CubeCart Limited · CubeCartversion=< 6.7.0

Published CVSS scores

9.1GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
CWE-94Improper Control of Generation of Code ('Code Injection')
T1505.003Server Software Component: Web Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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