CVE-2026-4591 | kalcaddle kodbox 1.64 fileThumb Endpoint app.php checkBin os command injection

VDB-352427 · CVE-2026-4591 · GCVE-100-352427 KALCADDLE KODBOX 1.64 FILETHUMB ENDPOINT APP.PHP CHECKBIN OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.3 $0-$5k 1.52 Summaryinfo A vulnerability was found in kalcaddle kodbox 1.64. It has been classified as critical. This impacts the function checkBin of the file /workspace/source-code/plugins/fileThumb/app.php of the component fileThumb Endpoint. The manipulation leads to os command injection. This vulnerability is uniquely identified as CVE-2026-4591. The attack is possible to be carried out remotely. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way. Detailsinfo A vulnerability was found in kalcaddle kodbox 1.64 and classified as critical. This issue affects the function checkBin of the file /workspace/source-code/plugins/fileThumb/app.php of the component fileThumb Endpoint. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. It is possible to read the advisory at vulnplus-note.wetolink.com. The identification of this vulnerability is CVE-2026-4591. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are required for exploitation. Technical details as well as a public exploit are known. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK. The exploit is available at vulnplus-note.wetolink.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:workspace/source-code/plugins/fileThumb/app.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 Vendor kalcaddle Name kodbox Version 1.64 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 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: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 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 03/22/2026 Advisory disclosed 03/22/2026 +0 days VulDB entry created 03/22/2026 +0 days VulDB entry last update Sourcesinfo Advisory: vulnplus-note.wetolink.com Status: Not defined CVE: CVE-2026-4591 (🔒) GCVE (CVE): GCVE-0-2026-4591 GCVE (VulDB): GCVE-100-352427 scip Labs: https://www.scip.ch/en/?labs.20161013 Entryinfo Created: 03/22/2026 12:45 Changes: 03/22/2026 12:45 (57) Complete: 🔍 Submitter: vulnplusbot Cache ID: 99:B16:101 Submitinfo Accepted Submit #775470: Kodbox 1.64 Command Injection (by vulnplusbot) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸