XWiki configuration files can be accessed through the webjars API
Impact
It's possible to get access and read configuration files by using URLs such as http://localhost:8080/xwiki/webjars/wiki%3Axwiki/..%2F..%2F..%2F..%2F..%2FWEB-INF%2Fxwiki.cfg. The trick here is to encode the / which is decoded when parsing the URL segment, but not re-encoded when assembling the file path.
Patches
This has been patched in 17.4.0-rc-1, 16.10.7.
Workarounds
There is no known workaround, other than upgrading XWiki.
References
- https://jira.xwiki.org/browse/XWIKI-19350
- https://github.com/xwiki/xwiki-platform/commit/9e7b4c03f2143978d891109a17159f73d4cdd318#diff-45ea9c87d5fb68cd5db0da7f78cf25e76f1325f5fe56e21618b21786fc706236R80-R81
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at 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.platform:xwiki-platform-webjars | >= 6.1-miletone-2, <= 7.1.3 | no fix |
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-webjars-api | >= 7.1.4, < 16.10.7, >= 17.0.0-rc-1, < 17.4.0-rc-1 | 16.10.7, 17.4.0-rc-1 |
References
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-qww7-89xh-x7m7
- https://nvd.nist.gov/vuln/detail/CVE-2025-55747
- https://github.com/xwiki/xwiki-platform/commit/9e7b4c03f2143978d891109a17159f73d4cdd318#diff-45ea9c87d5fb68cd5db0da7f78cf25e76f1325f5fe56e21618b21786fc706236R80-R81
- https://github.com/xwiki/xwiki-platform
- https://jira.xwiki.org/browse/XWIKI-19350
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-23- Platform
- Java / Kotlin (Maven)
- Package
org.xwiki.platform:xwiki-platform-webjars, org.xwiki.platform:xwiki-platform-webjars-api- Disclosed
- 03.09.2025
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qww7-89xh-x7m7 - CC BY 4.0
Vulnerability history: org.xwiki.platform:xwiki-platform-webjars
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.
This is the only known vulnerability of this package.
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