What is CVE-2017-7663?

CVE-2017-7663 is a medium-severity vulnerability in Apache Openmeetings, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-07-17.

How severe is CVE-2017-7663?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Apache Openmeetings

CVE-2017-7663

Both global and Room chat are vulnerable to XSS attack in Apache OpenMeetings 3.2.0.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-07-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.027 (85.6th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Apache Openmeetings — versions 3.2.0, 3.2.1
Apache Software Foundation Openmeetings — versions 3.2.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.securityfocus.com/bid/99577 (VDB Entry, Third Party Advisory, vdb-entry)
markmail.org/message/aka2z2dq7icfw2p2 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2017-7663?: CVE-2017-7663 is a medium-severity vulnerability in Apache Openmeetings, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-07-17.
How severe is CVE-2017-7663?: Medium severity. CVSS v3 base score is 6.1 out of 10.