GHSA-Q9HG-9QJ2-MXF9

Vulnerability from github – Published: 2023-06-20 17:42 – Updated: 2023-06-30 20:28
VLAI?
Summary
XWiki Platform vulnerable to cross-site scripting via xcontinue parameter in previewactions template
Details

Impact

Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS). It's possible to exploit the previewactions template to perform a XSS, e.g. by using URL such as:

/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart&vm=previewactions.vm&xcontinue=javascript:alert(document.domain)

This vulnerability exists since XWiki 6.1-rc-1.

Patches

The vulnerability has been patched in XWiki 14.10.5 and 15.1-rc-1.

Workarounds

It's possible to workaround the vulnerability by editing the template previewactions.vm to perform checks on it, but note that the appropriate fix involves new APIs that have been recently introduced in XWiki. See the referenced jira tickets.

References

  • Jira ticket about the vulnerability: https://jira.xwiki.org/browse/XWIKI-20342
  • Introduction of the macro used for fixing this type of vulnerability: https://jira.xwiki.org/browse/XWIKI-20583
  • Commit containing the actual fix in the template: https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d

For more information

If you have any questions or comments about this advisory: * Open an issue in Jira XWiki.org * Email us at Security Mailing List

Attribution

This vulnerability has been reported by René de Sain @renniepak.

Severity ?
9.6 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-flamingo-skin-resources"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.1-rc-1"
            },
            {
              "fixed": "14.10.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-flamingo-skin-resources"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "15.0-rc-1"
            },
            {
              "fixed": "15.1-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-35162"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-06-20T17:42:16Z",
    "nvd_published_at": "2023-06-23T19:15:09Z",
    "severity": "CRITICAL"
  },
  "details": "### Impact\nUsers are able to forge an URL with a payload allowing to inject Javascript in the page (XSS).\nIt\u0027s possible to exploit the previewactions template to perform a XSS, e.g. by using URL such as: \n\u003e \u003chostname\u003e/xwiki/bin/get/FlamingoThemes/Cerulean?xpage=xpart\u0026vm=previewactions.vm\u0026xcontinue=javascript:alert(document.domain)\n\nThis vulnerability exists since XWiki 6.1-rc-1. \n\n### Patches\n\nThe vulnerability has been patched in XWiki 14.10.5 and 15.1-rc-1.\n\n### Workarounds\n\nIt\u0027s possible to workaround the vulnerability by editing the template previewactions.vm to perform checks on it, but note that the appropriate fix involves new APIs that have been recently introduced in XWiki. See the referenced jira tickets. \n\n### References\n\n  * Jira ticket about the vulnerability: https://jira.xwiki.org/browse/XWIKI-20342\n  * Introduction of the macro used for fixing this type of vulnerability: https://jira.xwiki.org/browse/XWIKI-20583\n  * Commit containing the actual fix in the template: https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in [Jira XWiki.org](https://jira.xwiki.org/)\n* Email us at [Security Mailing List](mailto:security@xwiki.org)\n\n### Attribution\n\nThis vulnerability has been reported by Ren\u00e9 de Sain @renniepak.\n",
  "id": "GHSA-q9hg-9qj2-mxf9",
  "modified": "2023-06-30T20:28:38Z",
  "published": "2023-06-20T17:42:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-q9hg-9qj2-mxf9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-35162"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/9f01166b1a8ee9639666099eb5040302df067e4d"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20342"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-20583"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XWiki Platform vulnerable to cross-site scripting via xcontinue parameter in previewactions template"
}


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Sightings

Author Source Type Date

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.



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