CVE-2017-0363 Special:UserLogin?returnto=interwiki:foo will redirect to external sites

What is CVE-2017-0363?

CVE-2017-0363 is a medium-severity vulnerability in Debian Debian Linux, published on 13 Apr 2018. 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

Mediawiki before 1.28.1 / 1.27.2 / 1.23.16 has a flaw where Special:UserLogin?returnto=interwiki:foo will redirect to external sites.

Weakness: CWE-601

Which versions are affected by CVE-2017-0363?

It affects 2 products.

Products include Debian Debian Linux, Mediawiki Mediawiki.

How do I fix CVE-2017-0363?

Upgrade to a fixed version.

Is CVE-2017-0363 being exploited?

There is no known exploitation of CVE-2017-0363 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2017-0363, GHSA-cf6c-hr52-mgxg.