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CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0

Opencast is free and open source software for automated video capture and distribution. First noticed in Opencast 13 and 14, Opencast's Elasticsearch integration may generate syntactically invalid Elasticsearch queries in relation to previously acceptable search queries. From Opencast version 11.4 and newer, Elasticsearch queries are retried a configurable number of times in the case of error to handle temporary losses of connection to Elasticsearch. These invalid queries would fail, causing the retry mechanism to begin requerying with the same syntactically invalid query immediately, in an infinite loop. This causes a massive increase in log size which can in some cases cause a denial of service due to disk exhaustion. Opencast 13.10 and Opencast 14.3 contain patches which address the base issue, with Opencast 16.7 containing changes which harmonize the search behaviour between the admin UI and external API. • https://github.com/opencast/opencast/security/advisories/GHSA-jh6x-7xfg-9cq2 https://github.com/opencast/opencast/pull/5033 https://github.com/opencast/opencast/pull/5150 • CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0

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. Opencast es una plataforma gratuita de código abierto para respaldar la gestión de contenido educativo de audio y video. • https://github.com/opencast/opencast/commit/d2ce2321590f86b066a67e8c231cf68219aea017 https://github.com/opencast/opencast/security/advisories/GHSA-r3qr-vwvg-43f7 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0

Opencast is a free and open source solution for automated video capture and distribution at scale. Prior to Opencast 10.14 and 11.7, users could pass along URLs for files belonging to organizations other than the user's own, which Opencast would then import into the current organization, bypassing organizational barriers. Attackers must have full access to Opencast's ingest REST interface, and also know internal links to resources in another organization of the same Opencast cluster. Users who do not run a multi-tenant cluster are not affected by this issue. This issue is fixed in Opencast 10.14 and 11.7. • https://github.com/opencast/opencast/commit/8d5ec1614eed109b812bc27b0c6d3214e456d4e7 https://github.com/opencast/opencast/security/advisories/GHSA-qm6v-cg9v-53j3 • CWE-287: Improper Authentication •