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CVE-2026-6835: CWE-434 Unrestricted upload of file with dangerous type in aEnrich a+HCM

0
Medium
VulnerabilityCVE-2026-6835cvecve-2026-6835cwe-434
Published: Wed Apr 22 2026 (04/22/2026, 03:40:36 UTC)
Source: CVE Database V5
Vendor/Project: aEnrich
Product: a+HCM

Description

CVE-2026-6835 is an arbitrary file upload vulnerability in the a+HCM product developed by aEnrich. It allows unauthenticated remote attackers to upload files of any type, including HTML documents, to arbitrary paths. This behavior may lead to cross-site scripting (XSS)-like effects. The vulnerability has a CVSS 4. 0 base score of 5. 1, indicating medium severity. No official patch or remediation guidance is currently available from the vendor. There are no known exploits in the wild at this time.

CVSS v4.0

Score 5.1medium

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
Active
Vuln. Confidentiality
None
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
Low
Subsq. Integrity
Low
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 04/29/2026, 11:46:34 UTC

Technical Analysis

The a+HCM product by aEnrich contains a CWE-434 unrestricted file upload vulnerability that permits unauthenticated attackers to upload arbitrary files to any location on the server. This includes potentially dangerous file types such as HTML documents, which could be used to trigger XSS-like impacts. The vulnerability is remotely exploitable without privileges or user interaction and has a medium severity rating based on CVSS 4.0 scoring. No patch or official remediation has been disclosed, and the product is not a cloud service.

Potential Impact

Successful exploitation allows unauthenticated remote attackers to upload arbitrary files to any path on the affected system. This can lead to the execution of malicious content, including HTML files that may cause XSS-like effects. The impact is considered medium severity due to the potential for unauthorized file placement and subsequent client-side attacks. There are no reports of active exploitation in the wild.

Mitigation Recommendations

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict file upload functionality where possible and monitor for suspicious file uploads. Avoid exposing the vulnerable upload interface to untrusted networks. Follow vendor updates closely for any forthcoming patches or official mitigations.

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Technical Details

Data Version
5.2
Assigner Short Name
twcert
Date Reserved
2026-04-22T02:48:35.815Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 69e8480219fe3cd2cd4cd5b1

Added to database: 4/22/2026, 4:01:06 AM

Last enriched: 4/29/2026, 11:46:34 AM

Last updated: 6/6/2026, 12:53:18 AM

Views: 62

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