Critical9.0Proxmox

Critical [CVE-2022-31358] reflected cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment prior to v7.2-3

This critical-severity Proxmox advisory covers CVE-2022-31358 affecting Proxmox Virtual Environment.

CVE-2022-31358 Published Dec 14, 2022Updated by vendor Jul 9, 2026

CVE-2022-31358

Affected products & platforms

ProxmoxVirtual Environment (VE)

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Summary

A reflected cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment prior to v7.2-3 allows remote attackers to execute arbitrary web scripts or HTML via non-existent endpoints under path /api2/html/.

Affected versions

before 7.2

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Fixed versions

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

Mitigation

Upgrade to a fixed release: 7.2. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · medium-confidence parse· fetched 2 months ago·verify at source

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