TI-2022-20305 Aliases CVE-2022-41965 GHSA-r3qr-vwvg-43f7

Opencast Authenticated OpenRedirect Vulnerability

LOW 27CWE-601Published 2022-11-28 · Updated 2025-04-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Spoofing
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-601.

Summary

Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to Opencast 12.5, Opencast's Paella authentication page could be used to redirect to an arbitrary URL for authenticated users. The vulnerability allows attackers to redirect users to sites outside of one's Opencast install, potentially facilitating phishing attacks or other security issues. This issue is fixed in Opencast 12.5 and newer.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0039 33rd percentileScored 2026-11-07

Fix Fixed opencast (opencast): 12.5org.opencastproject:opencast-common (Maven): 12.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
opencast	opencast	before 12.5	12.5	Patch available	CNA
—	org.opencastproject:opencast-common (Maven)	before 12.5	12.5	Patch available	GHSA-r3qr-vwvg-43f7

opencast Vendoropencast Affected before 12.5 Fixed in 12.5 Patch available CNA
org.opencastproject:opencast-common (Maven) Vendor— Affected before 12.5 Fixed in 12.5 Patch available GHSA-r3qr-vwvg-43f7

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:apereo:opencast::::::::	before 12.5	Vulnerable	Apereo

cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:* Versions before 12.5 Vulnerable ·Apereo

Remediation

Fix · CNA opencast (opencast) Fixed in 12.5
Fix · GHSA-r3qr-vwvg-43f7 org.opencastproject:opencast-common (Maven) Fixed in 12.5 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2022-41965
2026-10-03 Alias added: GHSA-r3qr-vwvg-43f7

References

Patch 1

https://github.com/opencast/opencast/commit/d2ce2321590f86b066a67e8c231cf68219aea017

Advisory 2

Other 1

https://github.com/opencast/opencast

TI-2026-54099 Paella Player: Stored XSS via caption cue text CVSS 3.1HIGH 8.7
TI-2026-54098 Opencast: Session fixation in login enables account takeover via crafted link CVSS 3.1HIGH 8.8
TI-2021-19627 Files Accessible to External Parties in Opencast CVSS 3.1CRITICAL 9.9
TI-2025-38256 Opencast's editor accidentally publishes videos/overwrites publications #1626 CVSS 4.0LOW 2.3
TI-2020-04262 Authentication Bypass For Endpoints With Anonymous Access in OpenCast CVSS 3.1CRITICAL 10.0
TI-2017-14534 Opencast 2.3.2 and older versions are vulnerable to script injections through media and… CVSS 3.0HIGH 8.8

See all 20 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences