Security Risk Category

Arbitrary File Write Security Risks — Page 4

Published vulnerability pages connected to Arbitrary File Write. Each page keeps one canonical URL and focused remediation guidance.

116 published Arbitrary File Write risks

Arbitrary File Write risks

Showing 109–116 of 116 published risks.

critical

XAPI PCI Passthrough RBAC Bypass Vulnerability

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] XAPI can configure different users with different roles, using Role Based Access Control. For more details, see: https://docs.xenserver.com/en-us/xencenter/current-release/rbac-overview.html#rbac-roles The pool-admin role is fully privileged. Notably, users with this role can also SSH into the host as root. The other administrator roles are pool-operator, vm-power-admin and vm-admin, each of which are authorised to configure and manage various aspects of the system. Some settings are inadequately restricted, and can be set by a lower privilege of administrator than expected. * CVE-2026-23559: A vm-admin can set VBD.other_config:backend-local and turn arbitrary files in dom0 into VDIs (virtual disks) and give said disks to a VM they control. This is an arbitrary read and/or modify of files in dom0. * CVE-2026-23560: A vm-admin can set VM.other-config:is_system_domain and mark a VM as a system domain. System domains are ignored and left running during certain other host/pool operations, and may be hidden from view in tooling. * CVE-2026-23561: A vm-admin can set VM.other_config:storage_driver_domain and mark a VM as the storage domain for a particular host storage connection (PBD). Shutting down the VM can cause the PBD to be erroneously marked as unplugged when it is not. * CVE-2026-23562: Configuration of PCI passthrough is normally restricted to the pool-admin role. However one API was missing this check, allowing a vm-admin access to unintended host hardware. * CVE-2026-42486: A vm-admin can set the VM.platform:hvm_serial parameter, which should be restricted to the pool-admin role, as it can allow arbitrary dom0 file write.

CVE-2026-23562network-securityapi-securityvirtualizationauthorization-bypass

Updated Jul 9, 2026

critical

XAPI hvm_serial RBAC Bypass Arbitrary dom0 File Write Vulnerability

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] XAPI can configure different users with different roles, using Role Based Access Control. For more details, see: https://docs.xenserver.com/en-us/xencenter/current-release/rbac-overview.html#rbac-roles The pool-admin role is fully privileged. Notably, users with this role can also SSH into the host as root. The other administrator roles are pool-operator, vm-power-admin and vm-admin, each of which are authorised to configure and manage various aspects of the system. Some settings are inadequately restricted, and can be set by a lower privilege of administrator than expected. * CVE-2026-23559: A vm-admin can set VBD.other_config:backend-local and turn arbitrary files in dom0 into VDIs (virtual disks) and give said disks to a VM they control. This is an arbitrary read and/or modify of files in dom0. * CVE-2026-23560: A vm-admin can set VM.other-config:is_system_domain and mark a VM as a system domain. System domains are ignored and left running during certain other host/pool operations, and may be hidden from view in tooling. * CVE-2026-23561: A vm-admin can set VM.other_config:storage_driver_domain and mark a VM as the storage domain for a particular host storage connection (PBD). Shutting down the VM can cause the PBD to be erroneously marked as unplugged when it is not. * CVE-2026-23562: Configuration of PCI passthrough is normally restricted to the pool-admin role. However one API was missing this check, allowing a vm-admin access to unintended host hardware. * CVE-2026-42486: A vm-admin can set the VM.platform:hvm_serial parameter, which should be restricted to the pool-admin role, as it can allow arbitrary dom0 file write.

CVE-2026-42486network-securityapi-securityvirtualizationauthorization-bypass

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.014

JoomShaper SP Page Builder Unrestricted Upload of File with Dangerous Type Vulnerability

JoomShaper SP Page Builder contains an unrestricted upload of file with dangerous type vulnerability that allows unauthenticated users to upload arbitrary files, ultimately resulting in the upload and execution of PHP code.

CVE-2026-48908phpfile-uploadfile-write

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.007

Joomlack Page Builder Improper Access Control Vulnerability

Joomlack Page Builder contains an improper access control vulnerability that could allow for remote code execution via unauthenticated arbitrary file upload.

CVE-2026-56290joomlaremote-code-executionauthorization-bypassfile-upload

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.882

Splunk Enterprise Missing Authentication for Critical Function Vulnerability

Splunk Enterprise contains a missing authentication for critical function vulnerability which could allow an unauthenticated user to create or truncate arbitrary files through a PostgreSQL sidecar service endpoint.

CVE-2026-20253authentication-bypassfile-write

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.075

SimpleHelp Path Traversal Vulnerability

SimpleHelp contains a path traversal vulnerability that allows admin users to upload arbitrary files anywhere on the file system by uploading a crafted zip file (i.e. zip slip). This can be exploited to execute arbitrary code on the host in the context of the SimpleHelp server user.

CVE-2024-57728remote-code-executionpath-traversalfile-write

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.919

Samsung MagicINFO 9 Server Path Traversal Vulnerability

Samsung MagicINFO 9 Server contains a path traversal vulnerability that could allow an attacker to write arbitrary files as system authority.

CVE-2024-7399path-traversalfile-uploadfile-write

Updated Jul 9, 2026

criticalCISA KEVEPSS 0.070

Cisco Catalyst SD-WAN Manager Incorrect Use of Privileged APIs Vulnerability

Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.

CVE-2026-20122network-securityapi-securityfile-writeprivilege-escalation

Updated Jul 9, 2026