Vulnerability in Apereo Opencast

CVE-2021-43821

Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6 allows references to local file URLs in ingested media packages, allowing attackers to include local files from Opencast's ho…

EPSS: 0.020 (77.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-43821?
CVE-2021-43821 is a critical-severity vulnerability in Apereo Opencast, classified under Files or Directories Accessible to External Parties. CVSS score: 9.9/10. Published 2021-12-14.
How severe is CVE-2021-43821?
Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2021-43821 known to be exploited?
9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.