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    1 vulnerability by StarCitizenWiki

    CVE-2025-59839 (GCVE-0-2025-59839)

    Vulnerability from cvelistv5 – Published: 2025-09-25 13:56 – Updated: 2025-09-25 14:19
    VLAI
    Title
    Star Citizen EmbedVideo Extension Stored XSS through wikitext caused by usage of non-reserved data attributes
    Summary
    The EmbedVideo Extension is a MediaWiki extension which adds a parser function called #ev and various parser tags for embedding video clips from various video sharing services. In versions 4.0.0 and prior, the EmbedVideo extension allows adding arbitrary attributes to an HTML element, allowing for stored XSS through wikitext. This issue has been patched via commit 4e075d3.
    Severity
    8.6 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-59839",
                "options": [
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                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-25T14:19:33.724455Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-25T14:19:53.153Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "mediawiki-extensions-EmbedVideo",
          "vendor": "StarCitizenWiki",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 4.0.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The EmbedVideo Extension is a MediaWiki extension which adds a parser function called #ev and various parser tags for embedding video clips from various video sharing services. In versions 4.0.0 and prior, the EmbedVideo extension allows adding arbitrary attributes to an HTML element, allowing for stored XSS through wikitext. This issue has been patched via commit 4e075d3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
            "version": "3.1"
          }
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      ],
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        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/security/advisories/GHSA-4j5h-mvj3-m48v"
        },
        {
          "name": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075d3dc9a15a3ee53f449a684d5ab847e52f01",
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          "url": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/commit/4e075d3dc9a15a3ee53f449a684d5ab847e52f01"
        },
        {
          "name": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/ext.embedVideo.videolink.js#L5-L20",
          "tags": [
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          "url": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/ext.embedVideo.videolink.js#L5-L20"
        },
        {
          "name": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/modules/iframe.js#L139-L155",
          "tags": [
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          "url": "https://github.com/StarCitizenWiki/mediawiki-extensions-EmbedVideo/blob/440fb331a84b2050f4cc084c1d31d58a1d1c202d/resources/modules/iframe.js#L139-L155"
        }
      ],
      "source": {
        "advisory": "GHSA-4j5h-mvj3-m48v",
        "discovery": "UNKNOWN"
      },
      "title": "Star Citizen EmbedVideo Extension Stored XSS through wikitext caused by usage of non-reserved data attributes"
    }
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2025-59839",
    "datePublished": "2025-09-25T13:56:13.804Z",
    "dateReserved": "2025-09-22T14:34:03.471Z",
    "dateUpdated": "2025-09-25T14:19:53.153Z",
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