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Message-ID: <bc1ad47a-4ca6-2e38-42bd-beeb3b16a99d@apache.org>
Date: Tue, 05 May 2026 23:18:05 +0000
From: Pedro Henrique Oliveira dos Santos <pedro@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-43975: Apache Wicket: Possible malicious path traversal
in FolderUploadsFileManager
Severity: critical
Affected versions:
- Apache Wicket 10.0.0 through 10.8.0
- Apache Wicket 9.0.0 through 9.22.0
- Apache Wicket 8.0.0 through 8.17
Description:
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.
References:
https://github.com/apache/wicket/pull/1432
https://wicket.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-43975
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