CVE-2026-5331: OpenCart Extension Installer installer.php path traversal

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-04-02 · updated 2026-06-17
Weakness: CWE-22

Description

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.

Affected products

OpenCart: 4.1.0.3

References

https://drive.google.com/file/d/1YemSW2Tn0LKzY3mPosMzElQeHs8P3LMt/view?usp=sharing
https://vuldb.com/submit/780814
https://vuldb.com/vuln/354665
https://vuldb.com/vuln/354665/cti

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