CVE-2026-28413 Products.isurlinportal: Possible open redirect when using more than 2 forward slashes

Products.isurlinportal is a replacement for isURLInPortal method in Plone. Prior to versions 2.1.0, 3.1.0, and 4.0.0, a url /login?camefrom=////evil.example may redirect to an external website after login. This issue has been patched in versions 2.1.0, 3.1.0, and 4.0.0...

GHSA-43GX-6GV6-3JCP Products.isurlinportal has possible open redirect when using more than 2 forward slashes

Impact A url /login?camefrom=////evil.example may redirect to an external website after login. Standard Plone is not affected, but if you have customised the login, for example with add-ons, you might be affected. You can try the url to check if you are affected or not. Patches The problem has be...

PT-2015-6832

Name of the Vulnerable Software and Affected Versions Kallithea versions prior to 0.3 Description The issue allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the came from parameter to the admin/login API endpoint. Recommendations For version...