What is CVE-2025-52206?

CVE-2025-52206 is a medium-severity vulnerability in Ispconfig, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-05-05.

How severe is CVE-2025-52206?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Ispconfig

CVE-2025-52206

ISPConfig 3.3.0 is vulnerable to Cross Site Scripting (XSS) via the system status webpage.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-05-05 · last modified 2026-07-05.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Ispconfig — versions 3.3.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

ispconfig.com (Product)
www.ispconfig.org/blog/ispconfig-3-3-0p2-released-security-update/ (Patch, Release Notes)

Frequently asked questions

What is CVE-2025-52206?: CVE-2025-52206 is a medium-severity vulnerability in Ispconfig, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2026-05-05.
How severe is CVE-2025-52206?: Medium severity. CVSS v3 base score is 4.7 out of 10.