CVE-2026-23734
criticalpriority · track · 6EPSS 0.185 · 97 %ileDEEUUSEPSS · scored 2026-10-27
XWiki Platform is a generic wiki platform. Versions prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17 allow access to read configuration files by using URLs such as http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false, leading to Path Traversal. The vulnerability is can be exploited via resources parameter the ssx and jsx endpoints by using leading slashes. This issue has been patched in 18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (16)
Products and version ranges known to be affected.
- Maven org.xwiki.commons:xwiki-commons-classloader-api17.0.0-rc-1 → 17.4.9osvUSpkg:maven/org.xwiki.commons/xwiki-commons-classloader-api
- Maven org.xwiki.commons:xwiki-commons-classloader-api17.5.0 → 17.10.3osvUSpkg:maven/org.xwiki.commons/xwiki-commons-classloader-api
- Maven org.xwiki.commons:xwiki-commons-classloader-api18.0.0-rc-1 → 18.1.0-rc-1osvUSpkg:maven/org.xwiki.commons/xwiki-commons-classloader-api
- Maven org.xwiki.commons:xwiki-commons-classloader-api4.2-milestone-2 → 16.10.17osvUSpkg:maven/org.xwiki.commons/xwiki-commons-classloader-api
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1613xwiki: Schwachstelle ermöglicht Offenlegung von InformationenDeutsch2026-05-20csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in xwiki ausnutzen, um Informationen offenzulegen.
- GHSA-xq3r-2qv5-vqqmXWiki Platform has path traversal via resources parameter in ssx and jsx endpoints when using leading slash2026-05-26ghsa · osvUS
### Impact It's possible to get access and read configuration files by using URLs such as `http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false`. This can apparently be reproduced on Tomcat instances. ### Patches This has been patched in 18.0.0-rc-1, 17.10.3, 17.4.9, 16.10.17. ### Workarounds There is no known workaround, other than upgrading XWiki. ### References * https://jira.xwiki.org/browse/XCOMMONS-3547 * https://github.com/xwiki/xwiki-commons/commit/a979cafd89f6a9c9c0b9ab19744d672df64429bf ### For more information If you have any questions or comments about this advisory: * Open an issue in [Jira XWiki.org](https://jira.xwiki.org/) * Email us at [Security Mailing List](mailto:security@xwiki.org) ### Attribution The vulnerability was reported by Michał Kołek.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-23734cnnvd
- https://github.com/xwiki/xwiki-platform/releasesPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-23734cnnvd
- https://github.com/xwiki/xwiki-commons/commit/a979cafd89f6a9c9c0b9ab19744d672df64429bfenisa_euvd
- https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-xq3r-2qv5-vqqmenisa_euvd
- https://jira.xwiki.org/browse/XCOMMONS-3547enisa_euvd
- https://github.com/xwiki/xwiki-commons/commit/a979cafd89f6a9c9c0b9ab19744d672df64429bfnvd
- https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-xq3r-2qv5-vqqmnvd
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