What is CVE-2020-15004?

CVE-2020-15004 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-10-23.

How severe is CVE-2020-15004?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2020-15004 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Open-Xchange Appsuite

CVE-2020-15004

OX App Suite through 7.10.3 allows stats/diagnostic?param= XSS.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.028 (86.2th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000

Affected products

Open-Xchange Appsuite — versions 7.10.2, 7.10.3

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

www.open-xchange.com/ (Product)
seclists.org/fulldisclosure/2020/Oct/20 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2020-15004?: CVE-2020-15004 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-10-23.
How severe is CVE-2020-15004?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2020-15004 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.