GHSA-M2VG-RMQ6-P62R

Vulnerability from github – Published: 2025-10-08 20:33 – Updated: 2025-10-13 15:39
VLAI?
Summary
Opencast's Paella Player 7 is vulnerable to Cross-Site Scripting
Details

Prior to Opencast 17.8 and 18.2 the paella would include and render some user inputs (metadata like title, description, etc.) unfiltered and unmodified.

Impact

The vulnerability allows attackers to inject and malicious HTML and JavaScript in the player, which would then be executed in the browsers of users watching the prepared media. This can then be used to modify the site or to execute actions in the name of logged-in users.

To inject malicious metadata, an attacker needs write access to the system. For example, the ability to upload media and modify metadata. This cannot be exploited by unauthenticated users.

Patches

This issue is fixed in Opencast 17.8 and 18.2, however they are not published to the Maven registry.

Resources

For more information

If you have any questions or comments about this advisory: * Open an issue in our issue tracker * Email us at security@opencast.org

Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.opencastproject:opencast-common"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "16.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-61788"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-08T20:33:31Z",
    "nvd_published_at": "2025-10-08T18:15:35Z",
    "severity": "MODERATE"
  },
  "details": "Prior to Opencast 17.8 and 18.2 the paella would include and render some user inputs (metadata like title, description, etc.) unfiltered and unmodified.\n\n### Impact\n\nThe vulnerability allows attackers to inject and malicious HTML and JavaScript in the player, which would then be executed in the browsers of users watching the prepared media. This can then be used to modify the site or to execute actions in the name of logged-in users.\n\nTo inject malicious metadata, an attacker needs write access to the system. For example, the ability to upload media and modify metadata. This cannot be exploited by unauthenticated users.\n\n### Patches\n\nThis issue is fixed in Opencast 17.8 and 18.2, however they are not published to the Maven registry.\n\n### Resources\n\n- [Patch fixing the issue](https://github.com/opencast/opencast/commit/2809520fa88d108d8104c760f00c10bad42c14f9)\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [our issue tracker](https://github.com/opencast/opencast/issues)\n* Email us at [security@opencast.org](mailto:security@opencast.org)",
  "id": "GHSA-m2vg-rmq6-p62r",
  "modified": "2025-10-13T15:39:38Z",
  "published": "2025-10-08T20:33:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/security/advisories/GHSA-m2vg-rmq6-p62r"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61788"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencast/opencast/commit/2809520fa88d108d8104c760f00c10bad42c14f9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencast/opencast"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Opencast\u0027s Paella Player 7 is vulnerable to Cross-Site Scripting"
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.