EUVD-2026-18216
GHSA-fhxj-4x9w-65xm
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
6DescriptionCVE.org
A vulnerability was determined in OpenCart 4.1.0.3. This affects an unknown part of the file installer.php of the component Extension Installer Page. Executing a manipulation can lead to path traversal. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Path traversal in OpenCart 4.1.0.3 Extension Installer Page allows high-privileged remote attackers to manipulate the installer.php file and traverse the filesystem, potentially accessing or modifying sensitive files outside the intended directory. The vulnerability has publicly available exploit code and affects the extension installation mechanism; vendor has not responded to early disclosure attempts, leaving installations unpatched.
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Vulnerability AssessmentAI
| Risk Assessment | CVSS 5.1 with CVSS:4.0 vector indicates low-to-moderate impact: remote attack vector with no authentication complexity, but requires high privilege level (PR:H). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A malicious administrator or attacker who has gained administrative credentials (via phishing, brute-force, or compromise) logs into the OpenCart backend and navigates to the Extension Installer Page. The attacker crafts a malicious installer request with path traversal sequences (e.g., '../../../../etc/passwd' or '../../config.php') in the file parameter of installer.php. … |
| Remediation | Immediate mitigation: restrict administrative access to the OpenCart backend to trusted networks only, disable or rename the installer.php file if the extension installer is not actively in use, and implement filesystem permissions to prevent directory traversal exploitation. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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