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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/apache/wicket/pull/1432 Issue Tracking, Patch
- https://lists.apache.org/thread/xp2jrdk6ppv1zcmxb4w1mk2lg1dw3hbr Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.5 · apacheNVD modified 2026-10-26 19:10
Affected (CPE criteria) 1
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
References 3
- https://github.com/apache/wicket/pull/1432 Issue Tracking, Patch
- https://lists.apache.org/thread/xp2jrdk6ppv1zcmxb4w1mk2lg1dw3hbr Vendor Advisory
- http://www.openwall.com/lists/oss-security/2026/05/06/4 Mailing List, Third Party Advisory