{"items":[{"id":"NVI-00006567","kind":"vulnerability","title":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-5c37-5j7w-8mh8","CVE-2026-50635"],"plain_summary":"OSV carries this publisher advisory for limesurvey/limesurvey. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2c06842b86a339d5deb0ebc5c73f4169"],"action_type":"investigate","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":[{"kind":"CVSS","as_of":"2026-10-08T16:17:19.203Z","value":"8.8 HIGH (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-3242ee650aa89b6a2a94dddcdcfabf8d"},{"kind":"CVSS","as_of":"2026-10-08T16:17:19.203Z","value":"8.7 HIGH (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-3242ee650aa89b6a2a94dddcdcfabf8d"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.372%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31182. Missing scores are unknown.","source_id":"sr-2c06842b86a339d5deb0ebc5c73f4169"}],"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-ba1693a92c4f93f85996aa3f905da952","url":"https://github.com/advisories/GHSA-5c37-5j7w-8mh8","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5c37-5j7w-8mh8","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.681Z"},{"id":"sr-3242ee650aa89b6a2a94dddcdcfabf8d","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50635","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-50635","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:22.913Z"},{"id":"sr-2c06842b86a339d5deb0ebc5c73f4169","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-50635","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba1693a92c4f93f85996aa3f905da952"],"technology":"limesurvey/limesurvey","known_exclusions":[],"conditions_summary":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default (and documented) configuration, so LSHttpRequest::checkIsAllowedHost() results in no operation. A remote, unauthenticated attacker who submits a forgotten-password request for a known account (requiring only the target's username and email) with a spoofed Host header causes LimeSurvey to email that account a reset link whose hostname is attacker-controlled while embedding the genuine validation_key. When the recipient or an automated inbound mail-security link scanner dereferences the link, the valid reset token is disclosed to the attacker, who replays it against the legitimate host's newPassword endpoint to set a new password and take over the account.","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 7.0.0-beta1"]}],"null_published_at":"2026-11-01T14:34:07.617Z","source_updated_at":"2026-07-31T19:41:43.337Z","source_disclosed_at":"2026-06-09T18:31:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.681Z"},{"id":"NVI-00006567","kind":"vulnerability","title":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5c37-5j7w-8mh8","CVE-2026-50635"],"plain_summary":"OSV carries this publisher advisory for limesurvey/limesurvey. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-2c06842b86a339d5deb0ebc5c73f4169"],"action_type":"investigate","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":[{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.372%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31182. Missing scores are unknown.","source_id":"sr-2c06842b86a339d5deb0ebc5c73f4169"}],"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-ba1693a92c4f93f85996aa3f905da952","url":"https://github.com/advisories/GHSA-5c37-5j7w-8mh8","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5c37-5j7w-8mh8","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.681Z"},{"id":"sr-2c06842b86a339d5deb0ebc5c73f4169","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-50635","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.382Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba1693a92c4f93f85996aa3f905da952"],"technology":"limesurvey/limesurvey","known_exclusions":[],"conditions_summary":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default (and documented) configuration, so LSHttpRequest::checkIsAllowedHost() results in no operation. A remote, unauthenticated attacker who submits a forgotten-password request for a known account (requiring only the target's username and email) with a spoofed Host header causes LimeSurvey to email that account a reset link whose hostname is attacker-controlled while embedding the genuine validation_key. When the recipient or an automated inbound mail-security link scanner dereferences the link, the valid reset token is disclosed to the attacker, who replays it against the legitimate host's newPassword endpoint to set a new password and take over the account.","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 7.0.0-beta1"]}],"null_published_at":"2026-10-31T22:27:15.269Z","source_updated_at":"2026-07-31T19:41:43.337Z","source_disclosed_at":"2026-06-09T18:31:04.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.681Z"},{"id":"NVI-00006567","kind":"vulnerability","title":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it.","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-5c37-5j7w-8mh8","CVE-2026-50635"],"plain_summary":"OSV carries this publisher advisory for limesurvey/limesurvey. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-ba1693a92c4f93f85996aa3f905da952"],"action_type":"investigate","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-ba1693a92c4f93f85996aa3f905da952","url":"https://github.com/advisories/GHSA-5c37-5j7w-8mh8","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-5c37-5j7w-8mh8","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.681Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ba1693a92c4f93f85996aa3f905da952"],"technology":"limesurvey/limesurvey","known_exclusions":[],"conditions_summary":"LimeSurvey constructs account password-reset links from the client-supplied HTTP Host header without validating it. The optional allowedHosts allowlist that would constrain this is undefined in the default (and documented) configuration, so LSHttpRequest::checkIsAllowedHost() results in no operation. A remote, unauthenticated attacker who submits a forgotten-password request for a known account (requiring only the target's username and email) with a spoofed Host header causes LimeSurvey to email that account a reset link whose hostname is attacker-controlled while embedding the genuine validation_key. When the recipient or an automated inbound mail-security link scanner dereferences the link, the valid reset token is disclosed to the attacker, who replays it against the legitimate host's newPassword endpoint to set a new password and take over the account.","public_affected_ranges":["ECOSYSTEM: introduced 0; last_affected 7.0.0-beta1"]}],"null_published_at":"2026-10-31T22:13:10.062Z","source_updated_at":"2026-07-31T19:41:43.337Z","source_disclosed_at":"2026-06-09T18:31:04.000Z","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":"2026-10-31T21:41:49.681Z"}],"next_cursor":null,"snapshot_revision":"42594"}