{"schema_version":"1","data":[{"id":1717,"advisory_id":"a925d598-c3de-4911-8f34-7e4f76aac3df","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93869","source_published_at":"2026-09-18T19:56:35.457+00:00","published_at":"2026-10-24T21:06:15.861849+00:00","extraction_method":"structured","technologies":["core-cve","cotonti"],"cve_ids":["CVE-2026-93869"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex","summary":"Cotonti through 1.0.0 contains an open redirect vulnerability in the cot_url_check() function that validates redirect destinations using a regular expression lacking an end-of-string anchor. Attackers can bypass the redirect guard by supplying hostnames beginning with the site domain to redirect users to attacker-controlled hosts through the ratings plugin or other redirect callers.","evidence":"cve:CVE-2026-93869","products":[{"name":{"value":"Cotonti","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"medium","structured":{"id":"CVE-2026-93869","aliases":["CVE-2026-93869"],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","userInteraction":"PASSIVE","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","subIntegrityImpact":"LOW","vulnIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","vulnConfidentialityImpact":"LOW"}},{"format":"CVSS","cvssV3_1":{"scope":"CHANGED","version":"3.1","baseScore":6.1,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}}],"affected":[{"repo":"https://github.com/Cotonti/Cotonti","vendor":"Cotonti","product":"Cotonti","versions":[{"status":"affected","version":"0","versionType":"custom","lessThanOrEqual":"1.0.0"}],"packageURL":"pkg:composer/cotonti/cotonti","programFiles":["system/functions.php","plugins/ratings/ratings.ajax.php"],"defaultStatus":"unaffected"}],"modified":"2026-09-24T14:23:17.909Z","provider":"cve","references":["https://github.com/Cotonti/Cotonti/issues/1891","https://github.com/Cotonti/Cotonti/pull/1899","https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php","https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php","https://github.com/Cotonti/Cotonti","https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex"],"provider_metadata":{"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-93869","role":"CISA Coordinator","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-21T15:16:19.097293Z"}}}],"references":[{"url":"https://github.com/Cotonti/Cotonti/issues/1891","tags":["exploit"]}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-21T15:16:25.853Z"}}],"cna":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-09-24T14:23:17.909Z"}}},"related_cves":[{"value":"CVE-2026-93869","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":"/containers/cna/metrics"}}],"next_after":1717,"next_before":1717}