kalcaddle kodbox 1.64 Public Share userShare.class.php add unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.23

Summaryinfo

A vulnerability was found in kalcaddle kodbox 1.64. It has been classified as critical. Impacted is the function Add of the file app/controller/explorer/userShare.class.php of the component Public Share Handler. Performing a manipulation results in unrestricted upload. This vulnerability is reported as CVE-2026-4830. 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, which was classified as critical, was found in kalcaddle kodbox 1.64. This affects the function add of the file app/controller/explorer/userShare.class.php of the component Public Share Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at vulnplus-note.wetolink.com. This vulnerability is uniquely identified as CVE-2026-4830. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known. The attack technique deployed by this issue is T1608.002 according to MITRE ATT&CK.

The exploit is shared for download 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:app/controller/explorer/userShare.class.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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/25/2026 Advisory disclosed
03/25/2026 +0 days VulDB entry created
03/25/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: vulnplus-note.wetolink.com
Status: Not defined

CVE: CVE-2026-4830 (🔒)
GCVE (CVE): GCVE-0-2026-4830
GCVE (VulDB): GCVE-100-353127
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/25/2026 15:16
Changes: 03/25/2026 15:16 (57)
Complete: 🔍
Submitter: vulnplusbot
Cache ID: 216:41E:103

Submitinfo

Accepted

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