{"items":[{"id":"NVI-00003118","kind":"vulnerability","title":"Silverstripe X-Forwarded-Host request hostname injection","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-25gq-jvx2-vg9x"],"plain_summary":"OSV carries this publisher advisory for silverstripe/framework. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 3.1.13 for silverstripe/framework. Confirm the publisher’s latest guidance.","source_ids":["sr-332837d6229beaea009a519a98673be8"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-332837d6229beaea009a519a98673be8","url":"https://github.com/advisories/GHSA-25gq-jvx2-vg9x","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-25gq-jvx2-vg9x","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:40.010Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-332837d6229beaea009a519a98673be8"],"technology":"silverstripe/framework","known_exclusions":[],"conditions_summary":"A potential hostname injection vulnerability has been found which could allow attackers to alter url resolution.\n\nIf a request contains the X-Forwarded-Host HTTP header a website would then use its value in place of the actual HTTP hostname. In cases where caching is enabled, this could allow an attacker to potentially embed a remote url as the base_url for any site. This would then cause other visitors to the site to be redirected unknowingly.\n\nThis header is necessary for servers running behind a reverse proxy (such as nginx). Such servers are likely not vulnerable to this risk.\n\nA fix has been merged into the default installer, although existing projects which do not run behind a reverse proxy should update their htaccess as below:\n```\n\n    # Remove X-Forwarded-Host header sent as a part of any request from the web\n    RequestHeader unset X-Forwarded-Host\n\n```","public_affected_ranges":["ECOSYSTEM: introduced 3.1.0; fixed 3.1.13"]}],"null_published_at":"2026-10-31T22:12:38.475Z","source_updated_at":"2024-11-28T05:40:39.913Z","source_disclosed_at":"2024-05-23T16:59:25.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:40.010Z"}],"next_cursor":null,"snapshot_revision":"42594"}