CVE-2020-5228

Opencast allows unauthorized public access via OAI-PMH

HIGH
7.5
CVSS Score
Published: January 30, 2020 at 07:50 PM UTC
Updated: June 17, 2026 at 03:21 AM UTC
2 products affected across 2 vendorsOpencastOpencast

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Severity
HIGH7.5
Exploit prediction
EPSS 1.0%

Description

Opencast before 8.1 and 7.6 allows unauthorized public access to all media and metadata by default via OAI-PMH. OAI-PMH is part of the default workflow and is activated by default, requiring active user intervention of users to protect media. This leads to users unknowingly handing out public access to events without their knowledge. The problem has been addressed in Opencast 7.6 and 8.1 where the OAI-PMH endpoint is configured to require users with `ROLE_ADMIN` by default. In addition to this, Opencast 9 removes the OAI-PMH publication from the default workflow, making the publication a conscious decision users have to make by updating their workflows.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.68.0
Affected range stops below 7.6, so it looks safe — our inference, not a vendor statement
v < 7.6v < 8.1
Affected range stops below 7.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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