What is CVE-2023-46854?

CVE-2023-46854 is a medium-severity vulnerability in Proxmox Proxmox-Widget-Toolkit, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-28.

How severe is CVE-2023-46854?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Proxmox Proxmox-Widget-Toolkit

CVE-2023-46854

Proxmox proxmox-widget-toolkit before 4.0.9, as used in multiple Proxmox products, allows XSS via the edit notes feature.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Proxmox Proxmox-Widget-Toolkit

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

git.proxmox.com/ (Broken Link)
git.proxmox.com/ (Broken Link)
pve.proxmox.com/wiki/Package_Repositories (Patch, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2023-46854?: CVE-2023-46854 is a medium-severity vulnerability in Proxmox Proxmox-Widget-Toolkit, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-28.
How severe is CVE-2023-46854?: Medium severity. CVSS v3 base score is 5.4 out of 10.