What is CVE-2023-28326?

CVE-2023-28326 is a critical-severity vulnerability in Apache Openmeetings, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2023-03-28.

How severe is CVE-2023-28326?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Apache Openmeetings

CVE-2023-28326

Vendor: The Apache Software Foundation Versions Affected: Apache OpenMeetings from 2.0.0 before 7.0.0 Description: Attacker can elevate their privileges in any room

Vulnerability class: Broken Authentication

Published 2023-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.6th percentile), scored 2026-10-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Apache Openmeetings
Apache Software Foundation Openmeetings — versions 2.0.0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

lists.apache.org/thread/r9vn12dp5yofn1h3wd5x4h7c3vmmr5d9 (vendor-advisory, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2023-28326?: CVE-2023-28326 is a critical-severity vulnerability in Apache Openmeetings, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2023-03-28.
How severe is CVE-2023-28326?: Critical severity. CVSS v3 base score is 9.8 out of 10.