TI-2022-13353 Aliases CVE-2022-31358 GHSA-rxvq-gr74-jvpj

A reflected cross-site scripting (XSS) vulnerability in Proxmox Virtual Environment prior…

HIGH 80CWE-79Published 2022-12-14 · Updated 2026-07-09

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

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/.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.01335 71st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:proxmox:virtual_environment::::::::	before 7.2-3	Vulnerable	Proxmox

cpe:2.3:a:proxmox:virtual_environment:*:*:*:*:*:*:*:* Versions before 7.2-3 Vulnerable ·Proxmox

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-31358
2026-10-03 Alias added: GHSA-rxvq-gr74-jvpj

References

Exploit 1

https://starlabs.sg/blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway/

Other 2

TI-2022-16050 Proxmox Virtual Environment (PVE) and Proxmox Mail Gateway (PMG) are vulnerable to SSRF… CVSS 3.1CRITICAL 9.8
TI-2022-16049 A response-header CRLF injection vulnerability in the Proxmox Virtual Environment (PVE)… CVSS 3.1HIGH 7.1
TI-2025-35562 A stored cross-site scripting (XSS) vulnerability exists in the WebAuthn Relying Party… CVSS 3.1MEDIUM 5.4
TI-2025-35561 A stored cross-site scripting (XSS) vulnerability in the U2F Origin field of the… CVSS 3.1MEDIUM 5.4
TI-2025-35560 A stored cross-site scripting (XSS) vulnerability in the HTTP Proxy field within the… CVSS 3.1MEDIUM 5.4
TI-2023-23190 An issue in Proxmox Server Solutions GmbH Proxmox VE v.5.4 thru v.8.0, Proxmox Backup… CVSS 3.1HIGH 8.8

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences