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TI-2026-15130 Aliases CVE-2026-18412GHSA-3rx6-2g27-8gfq

The OpenCart v4.2.0.0 extension installer contains a directory traversal vulnerability

Priority MEDIUM 48Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

OpenCart extensions are uploaded as zip files with .ocmod.zip extensions. Upon installation, the OpenCart v4.2.0.0 extension installer extracts these zip files, but does not validate that the extracted paths stay inside the intended extraction directory. An attacker can craft a malicious extension containing file path traversal sequences, such as ../. With this vulnerability, an attacker can write files, such as a PHP web shell, into the webroot directory.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00537 45th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenCartOpenCart4.2.0.0—No fix listedCNA
  • OpenCart VendorOpenCart Affected 4.2.0.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:opencart:opencart:*:*:*:*:*:*:*:*——OpenCart
  • cpe:2.3:a:opencart:opencart:*:*:*:*:*:*:*:* Versions — — ·OpenCart

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18412
  2. 2026-10-03 Alias added: GHSA-3rx6-2g27-8gfq

References

Other 1

  • TI-2023-21572 OpenCart CMS v4.0.2.2 was discovered to lack a protective mechanism on its login page… CVSS 3.1CRITICAL 9.8
  • TI-2021-22536 OpenCart 3.0.3.8 Session Fixation via OCSESSID Cookie CVSS 4.0CRITICAL 9.3
  • TI-2024-38428 OpenCart Core 4.0.2.3 SQL Injection via search Parameter CVSS 4.0HIGH 8.8
  • TI-2023-25651 An issue discovered in OpenCart 4.0.0.0 to 4.0.2.3 allows authenticated backend users… CVSS 3.1HIGH 8.8
  • TI-2023-02171 Improper input validation in Opencart CVSS 3.1HIGH 8.8
  • TI-2021-22559 OpenCart 3.0.3.6 Account Takeover via Cross Site Request Forgery CVSS 4.0MEDIUM 6.9
See all 43 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences