CVE-2024-38518

mediumpriority · track · 0EPSS 0.003 · 23 %ileDEEU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.31% (23rd) EPSS

CVSS 4.6 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

EPSS · scored 2026-10-28

BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.

cvss

Technical severity, 0–10. One row per scoring source.

4.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:Lsecondary · ENISA EU

v3.14.6mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:Lsecondary · security-advisories@github.comexploitability 2.1 · impact 2.5

v3.14.2mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284US

affected products (3)

Products and version ranges known to be affected.

bigbluebutton bigbluebutton≤ < 2.6.18enisa_euvdEU
bigbluebutton bigbluebutton2.7.0, → 2.7.8enisa_euvdEU
bigbluebutton bigbluebutton2.8.0, → 3.0.0-alpha.7enisa_euvdEU

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-1471BigBlueButton: Mehrere SchwachstellenDeutsch2024-06-27csaf · cert_bundDE
Ein entfernter Angreifer kann mehrere Schwachstellen in BigBlueButton ausnutzen, um Sicherheitsmaßnahmen zu umgehen oder vertrauliche Informationen offenzulegen.

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2024-06-28modified 2026-06-17

references (14)

External citations — patches, advisories, analysis.

scry

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