CVE-2016-6806 Apache Wicket vulnerable to CSRF attacks

What is CVE-2016-6806?

CVE-2016-6806 is a high-severity vulnerability in Apache Wicket, published on 2 Oct 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Apache Wicket 6.x before 6.25.0, 7.x before 7.5.0, and 8.0.0-M1 provide a CSRF prevention measure that fails to discover some cross origin requests. The mitigation is to not only check the Origin HTTP header, but also take the Referer HTTP header into account when no Origin was provided. Furthermore, not all Wicket server side targets were subjected to the CSRF check. This was also fixed.

Weakness: CWE-352

Which versions are affected by CVE-2016-6806?

6 open source packages ship an affected version, including org.apache.wicket:wicket-core. It affects 1 product.

Products include Apache Wicket.

How do I fix CVE-2016-6806?

Upgrade org.apache.wicket:wicket-core to a fixed version for your release line: 6.25.0, 7.5.0 or 8.0.0-M2.

Is CVE-2016-6806 being exploited?

There is no known exploitation of CVE-2016-6806 in the wild and no public exploit code.

Other vulnerabilities in Apache Wicket

• CVE-2024-36522 Apache Wicket: Remote code execution via XSLT injection Critical 9.8
• CVE-2026-40010 Apache Wicket: possible session fixation using AuthenticatedWebSession Critical 9.1
• CVE-2016-6793 Deserialization in n/a Critical 9.1
• CVE-2026-71257 Apache Wicket: Configured file upload limits are not enforced when the multipart request has already been parsed High 7.5
• CVE-2026-43646 Apache Wicket: crafted URLs can bypass PackageResourceGuard High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xc66-mg8r-q6r5.