XWiki Platform privilege escalation (PR)/RCE from account through Invitation subject/message

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.9 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

EPSS

• CVE-2023-37914: 1.86% estimated exploitation activity in the next 30 days; percentile 79.30 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Impact Any user who can view Invitation.WebHome can execute arbitrary script macros including Groovy and Python macros that allow remote code execution including unrestricted read and write access to all wiki contents. This can be reproduced with the following steps: 1. Open the invitation application (Invitation.WebHome). 1. Set the subject to {{cache}}{{groovy}}new File("/tmp/exploit.txt").withWriter { out - out.println("Attacked from invitation!"); }{{/groovy}}{{/cache}} 1. Click "Preview" Patches The vulnerability has been patched on XWiki 14.4.8, 15.2-rc-1, and 14.10.6. Workarounds The vulnerability can be patched manually by applying the patch on Invitation.InvitationCommon and Invitation.InvitationConfig. References - https://jira.xwiki.org/browse/XWIKI-20421 - https://github.com/xwiki/xwiki-platform/commit/ff1d8a1790c6ee534c6a4478360a06efeb2d3591 For more information If you have any questions or comments about this advisory: Open an issue in Jira XWiki.org Email us at…

Published by the source

18 Aug 2023, 21:50 UTC

Last modified by the source

11 Nov 2023, 05:06 UTC

Source last checked

26 Oct 2026, 16:19 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-7954-6m9q-gpvf

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# Patch Next advisory brief: CVE-2023-37914

Advisory: XWiki Platform privilege escalation (PR)/RCE from account through Invitation subject/message
IDs: CVE-2023-37914, GHSA-7954-6m9q-gpvf
Record: https://patchnext.com/advisories/cve-2023-37914 (revision 1, source checked 26 Oct 2026, 16:19 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.xwiki.platform:xwiki-platform-invitation-ui 15.2-rc-1, 14.10.6, 14.4.8. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-invitation-ui: affected >= 2.5-m-1, < 14.4.8; >= 14.5, < 14.10.6; >= 15.0-rc-1, < 15.2-rc-1; fixed in 15.2-rc-1, 14.10.6, 14.4.8

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-invitation-ui: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.xwiki.platform:xwiki-platform-invitation-ui.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-7954-6m9q-gpvf (GitHub-reviewed advisory GHSA-7954-6m9q-gpvf lists affected ranges: Maven org.xwiki.platform:xwiki-platform-invitation-ui >=2.5-m-1 =14.5 =15.0-rc-1 <15.2-rc-1)

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