What is CVE-2018-13103?

CVE-2018-13103 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2019-03-21.

How severe is CVE-2018-13103?

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

SSRF in Open-Xchange Appsuite

CVE-2018-13103

OX App Suite 7.8.4 and earlier allows SSRF.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2019-03-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.008 (56.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Open-Xchange Appsuite

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

packetstormsecurity.com/files/151243/Open-Xchange-OX-App-Suite-Cross-Site-Scrip… (Exploit, VDB Entry, Third Party Advisory)
seclists.org/fulldisclosure/2019/Jan/46 (Exploit, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-13103?: CVE-2018-13103 is a medium-severity vulnerability in Open-Xchange Appsuite, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2019-03-21.
How severe is CVE-2018-13103?: Medium severity. CVSS v3 base score is 5.4 out of 10.