FKIE_CVE-2023-30538

Vulnerability from fkie_nvd - Published: 2023-04-18 22:15 - Updated: 2024-11-21 08:00
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Discourse is an open source platform for community discussion. Due to the improper sanitization of SVG files, an attacker can execute arbitrary JavaScript on the users’ browsers by uploading a crafted SVG file. This issue is patched in the latest stable and tests-passed versions of Discourse. Users are advised to upgrade. For users unable to upgrade there are two possible workarounds: enable CDN handing of uploads (and ensure the CDN sanitizes SVG files) or disable SVG file uploads by ensuring that the `authorized extensions` site setting does not include `svg` (or reset that setting to the default, by default Discourse doesn't enable SVG uploads by users).
References
security-advisories@github.comhttps://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/security/advisories/GHSA-w5mv-4pjf-xj43Mitigation, Third Party Advisory
Impacted products
Vendor Product Version
discourse discourse *
discourse discourse *
discourse discourse 3.1.0
discourse discourse 3.1.0
discourse discourse 3.1.0
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Discourse is an open source platform for community discussion. Due to the improper sanitization of SVG files, an attacker can execute arbitrary JavaScript on the users\u2019 browsers by uploading a crafted SVG file. This issue is patched in the latest stable and tests-passed versions of Discourse. Users are advised to upgrade. For users unable to upgrade there are two possible workarounds: enable CDN handing of uploads (and ensure the CDN sanitizes SVG files) or disable SVG file uploads by ensuring that the `authorized extensions` site setting does not include `svg` (or reset that setting to the default, by default Discourse doesn\u0027t enable SVG uploads by users). "
    }
  ],
  "id": "CVE-2023-30538",
  "lastModified": "2024-11-21T08:00:22.817",
  "metrics": {
    "cvssMetricV31": [
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  "published": "2023-04-18T22:15:08.130",
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  "vulnStatus": "Modified",
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          "value": "CWE-79"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
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}


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  • 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.
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  • 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.