Path Traversal in Opencart
CVE-2026-5331
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (45.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- Opencart — versions 4.1.0.3
Weakness classification (CWE)
References
- vuldb.com/vuln/354665 (vdb-entry)
- vuldb.com/vuln/354665/cti (signature, permissions-required)
- vuldb.com/submit/780814 (third-party-advisory)
- drive.google.com/file/d/1YemSW2Tn0LKzY3mPosMzElQeHs8P3LMt/view (exploit)
Frequently asked questions
- What is CVE-2026-5331?
- CVE-2026-5331 is a medium-severity vulnerability in Opencart, classified under Path Traversal. CVSS score: 4.7/10. Published 2026-04-02.
- How severe is CVE-2026-5331?
- Medium severity. CVSS v3 base score is 4.7 out of 10.