XWiki Realtime WYSIWYG Editor extension allows privilege escalation (PR) through realtime WYSIWYG editing

Exploitation

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

CVSS

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

EPSS

• CVE-2025-23025: 0.42% estimated exploitation activity in the next 30 days; percentile 36.61 (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 NOTE: The Realtime WYSIWYG Editor extension was experimental, and thus not recommended, in the versions affected by this vulnerability. It has become enabled by default, and thus recommended, starting with XWiki 16.9.0. A user with only edit right can join a realtime editing session where others, that where already there or that may join later, have script or programming access rights. This user can then insert script rendering macros that are executed for those users in the realtime session that have script or programming rights. The inserted scripts can be used to gain more access rights. Here's an example that works with XWiki 15.10.9+ and 16.2.0+: the attacker starts editing a wiki page in realtime (for which they have edit right) another user, with script or programming access right joins the editing session (e.g. by clicking on a link / URL provided by the attacker) the attacker inserts a script rendering macro, say {{velocity}}I can run scripts{{/velocity}}, in the…

Published by the source

14 Jan 2025, 16:00 UTC

Last modified by the source

14 Jan 2025, 21:20 UTC

Source last checked

26 Oct 2026, 16:34 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-rmm7-r7wr-xpfg

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# Patch Next advisory brief: CVE-2025-23025

Advisory: XWiki Realtime WYSIWYG Editor extension allows privilege escalation (PR) through realtime WYSIWYG editing
IDs: CVE-2025-23025, GHSA-rmm7-r7wr-xpfg
Record: https://patchnext.com/advisories/cve-2025-23025 (revision 1, source checked 26 Oct 2026, 16:34 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.0)
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-realtime-wysiwyg-ui 16.6.0-rc-1, 16.4.1, 15.10.12. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.xwiki.platform:xwiki-platform-realtime-wysiwyg-ui: affected >= 13.9-rc-1, < 15.10.12; >= 16.0.0-rc-1, < 16.4.1; >= 16.5.0-rc-1, < 16.6.0-rc-1; fixed in 15.10.12, 16.4.1, 16.6.0-rc-1

## Suggested inspection (read-only)
- Maven org.xwiki.platform:xwiki-platform-realtime-wysiwyg-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-realtime-wysiwyg-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-rmm7-r7wr-xpfg (GitHub-reviewed advisory GHSA-rmm7-r7wr-xpfg lists affected ranges: Maven org.xwiki.platform:xwiki-platform-realtime-wysiwyg-ui >=13.9-rc-1 =16.0.0-rc-1 =16.5.0-rc-1 <16.6.0-rc-1)

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