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CVE-2023-28326

30
FAUCET Score

CVE-2023-28326 is a critical privilege escalation vulnerability affecting Apache OpenMeetings versions 2.0.0 through 6.3.0. An unauthenticated attacker can exploit this flaw to elevate their privileges within any room, gaining full control over sensitive data and system resources. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with no user interaction required, leading to high impacts on confidentiality, integrity, and availability. While no public exploits or active exploitation have been reported, the lack of community discussion and media coverage does not diminish its severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0, < 7.0.0CPE matchmatch criteria
cpe:2.3:a:apache:openmeetings:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 53rd percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.openmeetings:openmeetings-parentFixed in: 7.0.0

Vendor Advisories (1)

mavenGHSA-3r48-3m8r-4r9wcritical

Apache OpenMeetings missing authentication and can allow user impersonation

Mar 28, 2023

References

lists.apache.org / thread/r9vn12dp5yofn1h3wd5x4h7c3vmmr5d9
Mailing ListVendor Advisory