CVE-2026-341518.2HighCWE-24

CVE-2026-34151: XWiki Platform: Resource path traversal via /skin/ action endpoint in Jetty 12+

xwiki · xwiki-platform

Affected: xwiki-platform · Exploitation: check available, not yet exploited

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

2.5%probability of exploitation in the next 30 days

84th percentile

050100

Higher than 84% of scored CVEs

8.2HighCVSS 4.0

LowMediumHighCrit.

DescriptionCVE.org

XWiki Platform is a generic wiki platform. Prior to 17.10.5 and 18.2.0, the /skin/ action in com.xpn.xwiki.web.SkinAction can resolve double-encoded parent-directory segments outside the intended skin or web-application resource prefix when Jetty 12 or later decodes the request path. The affected lookup is replaced with Environment.getResourceAsStream(String, String), which constrains a resource to its expected prefix. An unauthenticated remote attacker can use the vulnerable behavior to read arbitrary resources permitted to the Jetty process, including WEB-INF/xwiki.cfg and, depending on deployment depth and operating-system permissions, host files. Tomcat and Jetty versions before 12 do not appear affected. This issue is fixed in versions 17.10.5 and 18.2.0.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

xwiki · xwiki-platform< 17.10.5; >= 18.0.0-rc-1, < 18.2.0

On the Atlas

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Open the Atlas

Exploitation: Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
CISA KEV: Not listed
Public check: XWiki Platform - Path Traversal · nuclei template in projectdiscovery/nuclei-templates
Weakness: Path Traversal: '../filedir' · File and Path Handling
Vendor: xwiki
Published: September 2026
Band: Check available, not yet exploited, September 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-34151 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.