CVE-2026-5331 | OpenCart 4.1.0.3 Extension Installer Page installer.php path traversal

VDB-354665 · CVE-2026-5331 · GCVE-100-354665 OpenCart 4.1.0.3 Extension Installer Page installer.php path traversal HistoryDiffrelatejsonxmlCTI CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system. Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack. CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability. 4.3 $0-$5k 2.72+ Summaryinfo A vulnerability has been found in OpenCart 4.1.0.3 and classified as critical. This vulnerability affects unknown code of the file installer.php of the component Extension Installer Page. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2026-5331. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability, which was classified as critical, has been found in OpenCart 4.1.0.3. This issue affects an unknown part of the file installer.php of the component Extension Installer Page. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The advisory is shared at drive.google.com. The identification of this vulnerability is CVE-2026-5331. The exploitation is known to be easy. The attack may be initiated remotely. The exploitation requires an enhanced level of successful authentication. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue. The exploit is available at drive.google.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:installer.php it is possible to find vulnerable targets with Google Hacking. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type E-Commerce Management Software Name OpenCart Version 4.1.0.3 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.7 VulDB Meta Temp Score: 4.3 VulDB Base Score: 4.7 VulDB Temp Score: 4.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info AV AC Au C I A 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 💳 Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Path traversal CWE: CWE-22 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Access: Public Status: Proof-of-Concept Download: 🔒 Google Hack: 🔒 Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/01/2026 Advisory disclosed 04/01/2026 +0 days VulDB entry created 04/01/2026 +0 days VulDB entry last update Sourcesinfo Advisory: drive.google.com Status: Not defined CVE: CVE-2026-5331 (🔒) GCVE (CVE): GCVE-0-2026-5331 GCVE (VulDB): GCVE-100-354665 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 04/01/2026 15:55 Changes: 04/01/2026 15:55 (56) Complete: 🔍 Submitter: hai271120 Cache ID: 99:B94:101 Submitinfo Accepted Submit #780814: OpenCart 4.1.0.3 Path Traversal (by hai271120) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸ Do you want to use VulDB in your project? Use the official API to access entries easily!