Path Traversal in Apache Wicket
CVE-2026-43975
FolderUploadsFileManager in Apache Wicket does not validate or sanitize the uploadFieldId parameter or the clientFileName before constructing file paths, allowing an unauthenticated attacker to write arbitrary files outside the intended upload directory or read files from arbitrary locations on the server. This issue affects Apache Wicket: from 8.0.0 through 8.17.0, from 9.0.0 through 9.22.0, from 10.0.0 through 10.8.0. Users are recommended to upgrade to version 10.9.0, which fixes the issue.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.010 (62.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.010 · change: +0.003
Affected products
- Apache Wicket
- Apache Software Foundation Wicket — versions 10.0.0, 9.0.0, 8.0.0
Weakness classification (CWE)
References
- github.com/apache/wicket/pull/1432 (Patch, patch, Issue Tracking)
- lists.apache.org/thread/xp2jrdk6ppv1zcmxb4w1mk2lg1dw3hbr (vendor-advisory, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-43975?
- CVE-2026-43975 is a medium-severity vulnerability in Apache Wicket, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-05-06.
- How severe is CVE-2026-43975?
- Medium severity. CVSS v3 base score is 6.5 out of 10.