Summary
XWiki configuration files can be accessed through the webjars API
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
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.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
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See it in your environmentNew to Kodem? Get a demo →Remediation advice
This has been patched in 17.4.0-rc-1, 16.10.7.
Frequently Asked Questions
- What is CVE-2025-55747? CVE-2025-55747 is a critical-severity security vulnerability in org.xwiki.platform:xwiki-platform-webjars-api (maven), affecting versions >= 7.1.4, < 16.10.7. It is fixed in 16.10.7, 17.4.0-rc-1.
- Which packages are affected by CVE-2025-55747?
org.xwiki.platform:xwiki-platform-webjars-api(maven) (versions >= 7.1.4, < 16.10.7)org.xwiki.platform:xwiki-platform-webjars(maven) (versions >= 6.1-miletone-2, <= 7.1.3)
- Is there a fix for CVE-2025-55747? Yes. CVE-2025-55747 is fixed in 16.10.7, 17.4.0-rc-1. Upgrade to this version or later.
- Is CVE-2025-55747 exploitable, and should I be worried? Whether CVE-2025-55747 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2025-55747 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2025-55747?
- Upgrade
org.xwiki.platform:xwiki-platform-webjars-apito 16.10.7 or later - Upgrade
org.xwiki.platform:xwiki-platform-webjars-apito 17.4.0-rc-1 or later
- Upgrade