Relative Path Traversal Affecting org.xwiki.commons:xwiki-commons-classloader-api package, versions [4.2-milestone-2,16.10.17)[17.0.0-rc-1,17.4.9)[17.5.0,17.10.3)[18.0.0-rc-1,18.1.0-rc-1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published21 May 2026
- disclosed20 May 2026
- creditMichał Kołek
Introduced: 20 May 2026
CVE-2026-23734 (opens in a new tab)How to fix?
Upgrade org.xwiki.commons:xwiki-commons-classloader-api to version 16.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1 or higher.
Overview
Affected versions of this package are vulnerable to Relative Path Traversal via the resource parameter in the ssx and jsx endpoints when a leading slash is used. An attacker can access sensitive configuration files by crafting a URL that traverses directories.
Note:
This issue is due to incomplete fix for CVE-2025-55748.