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CVE-2022-31358

30
FAUCET Score

CVE-2022-31358 is a critical reflected cross-site scripting (XSS) vulnerability affecting Proxmox Virtual Environment versions prior to v7.2-3. This flaw allows remote attackers to execute arbitrary web scripts or HTML by injecting malicious code into non-existent API endpoints. With a CVSS score of 9.0, it poses a significant risk due to its low attack complexity and high potential for impact on confidentiality, integrity, and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 7.2-3CPE matchmatch criteria
cpe:2.3:a:proxmox:virtual_environment:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 78th percentile among its peer group of 265 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.6 Bluesky, 0.3 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.proxmox.com
git.proxmox.com
starlabs.sg / blog/2022/12-multiple-vulnerabilites-in-proxmox-ve--proxmox-mail-gateway
ExploitPatchTechnical DescriptionThird Party Advisory
proxmox.com / en
Product