FKIE_CVE-2023-36471

Vulnerability from fkie_nvd - Published: 2023-06-29 20:15 - Updated: 2024-11-21 08:09
Severity ?
9.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
Xwiki commons is the common modules used by other XWiki top level projects. The HTML sanitizer that is included in XWiki since version 14.6RC1 allowed form and input HTML tags. In the context of XWiki, this allows an attacker without script right to either create forms that can be used for phishing attacks or also in the context of a sheet, the attacker could add an input like `{{html}}<input type="hidden" name="content" value="{{groovy}}println(&quot;Hello from Groovy!&quot;)" />{{/html}}` that would allow remote code execution when it is submitted by an admin (the sheet is rendered as part of the edit form). The attacker would need to ensure that the edit form looks plausible, though, which can be non-trivial as without script right the attacker cannot display the regular content of the document. This has been patched in XWiki 14.10.6 and 15.2RC1 by removing the central form-related tags from the list of allowed tags. Users are advised to upgrade. As a workaround an admin can manually disallow the tags by adding `form, input, select, textarea, button` to the configuration option `xml.htmlElementSanitizer.forbidTags` in the `xwiki.properties` configuration file.
References
security-advisories@github.comhttps://github.com/xwiki/xwiki-commons/commit/99484d48e899a68a1b6e33d457825b776c6fe8c3Patch
security-advisories@github.comhttps://github.com/xwiki/xwiki-commons/security/advisories/GHSA-6pqf-c99p-758vExploit, Mitigation, Vendor Advisory
security-advisories@github.comhttps://jira.xwiki.org/browse/XCOMMONS-2634Exploit, Issue Tracking, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/xwiki/xwiki-commons/commit/99484d48e899a68a1b6e33d457825b776c6fe8c3Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-6pqf-c99p-758vExploit, Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://jira.xwiki.org/browse/XCOMMONS-2634Exploit, Issue Tracking, Patch, Vendor Advisory
Impacted products
Vendor Product Version
xwiki commons *
xwiki commons 15.0
xwiki commons 15.0
xwiki commons 15.1
xwiki commons 15.1
To clipboard 

{
  "configurations": [
    {
      "nodes": [
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              "versionEndExcluding": "14.10.6",
              "versionStartIncluding": "14.6",
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            },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Xwiki commons is the common modules used by other XWiki top level projects. The HTML sanitizer that is included in XWiki since version 14.6RC1 allowed form and input HTML tags. In the context of XWiki, this allows an attacker without script right to either create forms that can be used for phishing attacks or also in the context of a sheet, the attacker could add an input like `{{html}}\u003cinput type=\"hidden\" name=\"content\" value=\"{{groovy}}println(\u0026quot;Hello from Groovy!\u0026quot;)\" /\u003e{{/html}}` that would allow remote code execution when it is submitted by an admin (the sheet is rendered as part of the edit form). The attacker would need to ensure that the edit form looks plausible, though, which can be non-trivial as without script right the attacker cannot display the regular content of the document. This has been patched in XWiki 14.10.6 and 15.2RC1 by removing the central form-related tags from the list of allowed tags. Users are advised to upgrade. As a workaround an admin can manually disallow the tags by adding `form, input, select, textarea, button` to the configuration option `xml.htmlElementSanitizer.forbidTags` in the `xwiki.properties` configuration file."
    }
  ],
  "id": "CVE-2023-36471",
  "lastModified": "2024-11-21T08:09:46.877",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.0,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 6.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
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          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
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          "userInteraction": "REQUIRED",
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      "tags": [
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      "tags": [
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-74"
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      "type": "Secondary"
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      "source": "nvd@nist.gov",
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    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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