What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-13 · updated 2026-06-17
• Weakness: CWE-94

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.

Affected products

• cubecart v6: before 6.7.0

References

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

Get alerted when CVE-2026-44377 or the next vulnerability affects your stack