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CRITICAL

CVE-2022-31358

CVSS v3

9

CRITICAL

EPSS Score

1.3 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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/.

Technical details

Published
2022-12-14

Frequently asked questions

What is CVE-2022-31358?

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/.

Is CVE-2022-31358 actively exploited?

Active exploitation of CVE-2022-31358 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-31358?

CVE-2022-31358 has a CVSS v3 base score of 9 (CRITICAL severity).

Is CVE-2022-31358 affecting your environment?

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