GHSA-45PH-GXXR-GWGW

Vulnerability from github – Published: 2026-08-19 19:18 – Updated: 2026-08-19 19:18
VLAI
Summary
XWiki Platform Live Data Live Table Connector has privilege escalation from edit to script right through Live Data editing
Details

Impact

Any user who can edit a page in XWiki can use Live Data's edit REST API in XWiki to change the rights on that page. This allows the user to obtain script right on the page. Script right allows the user to execute potentially dangerous Velocity scripts and send unfiltered HTML and JavaScript to the client. If there are other security checks, e.g., in extensions, implemented as listeners to UserUpdatingDocumentEvent and similar User… events, these checks can be circumvented, too.

Patches

This vulnerability has been patched by properly calling all checks in Live Data in XWiki 16.10.17, 17.4.10, 17.10.4 and 18.1.0.

Workarounds

We're not aware of any workarounds apart from upgrading.

Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-livedata-livetable"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "13.4-rc-1"
            },
            {
              "fixed": "16.10.17"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-livedata-livetable"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "17.0.0-rc-1"
            },
            {
              "fixed": "17.4.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-livedata-livetable"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "17.5.0-rc-1"
            },
            {
              "fixed": "17.10.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.xwiki.platform:xwiki-platform-livedata-livetable"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "18.0.0-rc-1"
            },
            {
              "fixed": "18.1.0-rc-1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-53966"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-19T19:18:04Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nAny user who can edit a page in XWiki can use Live Data\u0027s edit REST API in XWiki to change the rights on that page. This allows the user to obtain script right on the page. Script right allows the user to execute potentially dangerous Velocity scripts and send unfiltered HTML and JavaScript to the client. If there are other security checks, e.g., in extensions, implemented as listeners to `UserUpdatingDocumentEvent` and similar `User\u2026` events, these checks can be circumvented, too.\n\n### Patches\nThis vulnerability has been patched by properly calling all checks in Live Data in XWiki 16.10.17, 17.4.10, 17.10.4 and 18.1.0.\n\n### Workarounds\nWe\u0027re not aware of any workarounds apart from upgrading.",
  "id": "GHSA-45ph-gxxr-gwgw",
  "modified": "2026-08-19T19:18:04Z",
  "published": "2026-08-19T19:18:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-45ph-gxxr-gwgw"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xwiki/xwiki-platform/commit/448b0f074cc6711410eb2647c4740454c92d1626"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/xwiki/xwiki-platform"
    },
    {
      "type": "WEB",
      "url": "https://jira.xwiki.org/browse/XWIKI-23986"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "XWiki Platform Live Data Live Table Connector has privilege escalation from edit to script right through Live Data editing"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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