CVE-2020-5230

Opencast uses unsafe identifiers

HIGH
7.5
CVSS Score
Published: January 30, 2020 at 08:55 PM UTC
Updated: June 17, 2026 at 03:21 AM UTC
2 products affected across 2 vendorsOpencastOpencast

Using opencast by opencast?

Get instant alerts when new vulnerabilities affect opencast - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

Opencast before 8.1 and 7.6 allows almost arbitrary identifiers for media packages and elements to be used. This can be problematic for operation and security since such identifiers are sometimes used for file system operations which may lead to an attacker being able to escape working directories and write files to other locations. In addition, Opencast's Id.toString(…) vs Id.compact(…) behavior, the latter trying to mitigate some of the file system problems, can cause errors due to identifier mismatch since an identifier may unintentionally change. This issue is fixed in Opencast 7.6 and 8.1.

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
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-99CWE-74

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card