What is CVE-2023-4517?

CVE-2023-4517 is a medium-severity vulnerability in Hestiacp, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-13.

How severe is CVE-2023-4517?

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

XSS in Hestiacp

CVE-2023-4517

Cross-site Scripting (XSS) - Stored in GitHub repository hestiacp/hestiacp prior to 1.8.6.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-13 · 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 (32.3th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% 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

Hestiacp
Hestiacp Hestiacp/hestiacp — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

huntr.dev/bounties/508d1d21-c45d-47ff-833f-50c671882e51 (Exploit, Patch, Third Party Advisory)
github.com/hestiacp/hestiacp/commit/d30e3edbca5915235643e46ab222cb7aed9b319a (Patch)

Frequently asked questions

What is CVE-2023-4517?: CVE-2023-4517 is a medium-severity vulnerability in Hestiacp, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-10-13.
How severe is CVE-2023-4517?: Medium severity. CVSS v3 base score is 5.4 out of 10.