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Security advisories & CVEs
10 advisories across 32 monitored vendors.
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Medium [CVE-2026-45694] Proxmox: LibreNMS is a network monitoring system
LibreNMS is a network monitoring system. In versions up to and including 26.4.0, the Proxmox application view is vulnerable to reflected cross-site scripting through the user-supplied instance and vmid GET parameters, which are reflected into the page title without adequate encoding. The parameters are placed into the page title with only strip_tags applied, and the title is then written into an inline document.title assignment through string interpolation, so a single quote terminates the JavaScript string and the remaining input runs as script. An attacker who lures an authenticated user into following a crafted link can execute script in that user's session, enabling actions such as theft of session data. This issue is fixed in version 26.5.0.
Medium [CVE-2026-51083] Incorrect access control in Proxmox Virtual Environment (PVE) 9.x qemu-server before 9.1.8 and 8.x before 8.4.8 allows users within limited privileges to obtain hashed passwords via the cloudinit/dump API
Incorrect access control in Proxmox Virtual Environment (PVE) 9.x qemu-server before 9.1.8 and 8.x before 8.4.8 allows users within limited privileges to obtain hashed passwords via the cloudinit/dump API.
Medium [CVE-2026-51081] cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment (PVE) 9.x 5.1.8 and Proxmox Virtual Environment (PVE) 8.x 4.3.16 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload
A cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment (PVE) 9.x 5.1.8 and Proxmox Virtual Environment (PVE) 8.x 4.3.16 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload.
Medium [CVE-2025-57540] Proxmox Virtual Environment: stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration…
A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party field within the Datacenter configuration of Proxmox Virtual Environment (PVE) 8.4. Authenticated users can inject JavaScript code that is later executed in the browsers of users who view the configuration page, enabling client-side attacks.
Medium [CVE-2025-57539] Proxmox Virtual Environment: stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the Datacenter configuration in Proxmox Virtual…
A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the Datacenter configuration in Proxmox Virtual Environment (PVE) 8.4 allows authenticated users to store malicious input. The payload is rendered unsafely in the Web UI and executed when viewed by other users, potentially leading to session hijacking or other attacks.
Medium [CVE-2025-57538] Proxmox Virtual Environment: stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the Datacenter configuration panel of Proxmox…
A stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the Datacenter configuration panel of Proxmox Virtual Environment (PVE) 8.4 allows an authenticated user to inject malicious input. The input is stored and executed in the context of other users' browsers when they view the affected configuration page. This can lead to arbitrary JavaScript execution.
Medium [CVE-2022-28142 +1] Jenkins Proxmox Plugin 0.7.0 and earlier does not perform a permission check in several HTTP endpoints, allowing attackers with…
Jenkins Proxmox Plugin 0.7.0 and earlier does not perform a permission check in several HTTP endpoints, allowing attackers with Overall/Read permission to connect to an attacker-specified host using attacker-specified username and password (perform a connection test), disable SSL/TLS validation for the entire Jenkins controller JVM as part of the connection test (see CVE-2022-28142), and test a rollback with attacker-specified parameters.
Medium [CVE-2022-28142 +1] cross-site request forgery (CSRF) vulnerability in Jenkins Proxmox Plugin 0.7.0 and earlier
A cross-site request forgery (CSRF) vulnerability in Jenkins Proxmox Plugin 0.7.0 and earlier allows attackers to connect to an attacker-specified host using attacker-specified username and password (perform a connection test), disable SSL/TLS validation for the entire Jenkins controller JVM as part of the connection test (see CVE-2022-28142), and test a rollback with attacker-specified parameters.
Medium [CVE-2022-28141] Jenkins Proxmox Plugin 0.5.0 and earlier stores the Proxmox Datacenter password unencrypted in the global config.xml file on the…
Jenkins Proxmox Plugin 0.5.0 and earlier stores the Proxmox Datacenter password unencrypted in the global config.xml file on the Jenkins controller where it can be viewed by users with access to the Jenkins controller file system.
Medium [CVE-2014-4156] Proxmox VE: Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability
Proxmox VE prior to 3.2: 'AccessControl.pm' User Enumeration Vulnerability