CVE-2023-28326
Published: 28 March 2023
Summary
CVE-2023-28326 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Apache Openmeetings. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 22.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-28326 is a missing authentication vulnerability (CWE-306) affecting Apache OpenMeetings versions 2.0.0 through 6.x prior to 7.0.0. The flaw permits an unauthenticated attacker to elevate privileges within conference rooms, carrying a CVSS 3.1 score of 9.8 that reflects network-exploitable impacts on confidentiality, integrity, and availability.
An attacker with no prior credentials or user interaction can remotely target any room and obtain elevated access, enabling actions that would normally require authenticated membership or moderator rights.
The Apache Software Foundation advisory published via the linked mailing-list thread addresses the issue and directs users to upgrade to version 7.0.0 or later. The associated EPSS score rose from a low baseline to a peak of 0.1057 on 2025-01-22 before receding, indicating a period of increased exploitation interest after the original disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-0853
Vulnerability details
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
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.