Before WordPress 4.9.5, the URL validator assumed URLs with the hostname localhost were on the same host as the WordPress server.
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
Link | Tags |
---|---|
https://wpvulndb.com/vulnerabilities/9053 | third party advisory |
http://www.securityfocus.com/bid/104350 | third party advisory vdb entry |
http://www.securitytracker.com/id/1040836 | third party advisory vdb entry |
https://www.debian.org/security/2018/dsa-4193 | third party advisory vendor advisory |
https://wordpress.org/news/2018/04/wordpress-4-9-5-security-and-maintenance-release/ | vendor advisory |
https://core.trac.wordpress.org/changeset/42894 | patch vendor advisory |
https://codex.wordpress.org/Version_4.9.5 | vendor advisory |
https://github.com/WordPress/WordPress/commit/804363859602d4050d9a38a21f5a65d9aec18216 | third party advisory patch |