Some bbb-record-core files installed with wrong file permission

published 2024-06-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-37889

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker may be able to exploit the overly elevated file permissions in the `/usr/local/bigbluebutton/core/vendor/bundle/ruby/2.7.0/gems/resque-2.6.0` directory with the goal of privilege escalation, potentially exposing sensitive information on the server. This issue has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.

Patch / fix

fixed in 1 links 3

bigbluebutton bigbluebutton 2.6.18, 2.7.8, 3.0.0-alpha.7

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-01)

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

bigbluebutton bigbluebutton

Classification

Weakness

CWE-269 Improper Privilege Management

References

Sources

CVE List CVE-2024-39302
NVD CVE-2024-39302

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary