CVE-2026-93869

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93869", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-18T19:39:36.562Z", "datePublished": "2026-09-18T19:56:35.457Z", "dateUpdated": "2026-09-24T14:23:17.909Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-24T14:23:17.909Z"}, "datePublic": "2026-09-17T00:00:00.000Z", "title": "Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "URL Redirection to Untrusted Site ('Open Redirect')", "cweId": "CWE-601", "type": "CWE"}]}], "affected": [{"vendor": "Cotonti", "product": "Cotonti", "defaultStatus": "unaffected", "packageURL": "pkg:composer/cotonti/cotonti", "versions": [{"version": "0", "lessThanOrEqual": "1.0.0", "status": "affected", "versionType": "custom"}], "repo": "https://github.com/Cotonti/Cotonti", "programFiles": ["system/functions.php", "plugins/ratings/ratings.ajax.php"]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:cotonti:cotonti_siena:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.0.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "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", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "subAvailabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/Cotonti/Cotonti/issues/1891", "tags": ["issue-tracking"]}, {"url": "https://github.com/Cotonti/Cotonti/pull/1899", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php", "tags": ["technical-description"]}, {"url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php", "tags": ["technical-description"]}, {"url": "https://github.com/Cotonti/Cotonti", "tags": ["product"]}, {"name": "VulnCheck Advisory: Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex"}], "credits": [{"lang": "en", "value": "Harsh Raj Singhania", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"references": [{"url": "https://github.com/Cotonti/Cotonti/issues/1891", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-21T15:16:19.097293Z", "id": "CVE-2026-93869", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-21T15:16:25.853Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"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": "2026-09-21T15:15:37.667Z"}}], "cna": {"title": "Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex", "credits": [{"lang": "en", "type": "finder", "value": "Harsh Raj Singhania"}], "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"}], "datePublic": "2026-09-17T00:00:00.000Z", "references": [{"url": "https://github.com/Cotonti/Cotonti/issues/1891", "tags": ["issue-tracking"]}, {"url": "https://github.com/Cotonti/Cotonti/pull/1899", "tags": ["patch", "issue-tracking"]}, {"url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php", "tags": ["technical-description"]}, {"url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php", "tags": ["technical-description"]}, {"url": "https://github.com/Cotonti/Cotonti", "tags": ["product"]}, {"url": "https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex", "name": "VulnCheck Advisory: Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-601", "description": "URL Redirection to Untrusted Site ('Open Redirect')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cotonti:cotonti_siena:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndIncluding": "1.0.0"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-24T14:23:17.909Z"}}}, "cveMetadata": {"cveId": "CVE-2026-93869", "state": "PUBLISHED", "dateUpdated": "2026-09-24T14:23:17.909Z", "dateReserved": "2026-09-18T19:39:36.562Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-09-18T19:56:35.457Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:composer/cotonti/cotonti", "product": "Cotonti", "programFiles": ["system/functions.php", "plugins/ratings/ratings.ajax.php"], "repo": "https://github.com/Cotonti/Cotonti", "vendor": "Cotonti", "versions": [{"lessThanOrEqual": "1.0.0", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "disclosure@vulncheck.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-93869", "lastModified": "2026-09-22T20:53:07.383", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-93869", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-21T15:16:19.097293Z", "version": "2.0.3"}}]}, "published": "2026-09-18T20:17:34.787", "references": [{"source": "disclosure@vulncheck.com", "url": "https://github.com/Cotonti/Cotonti"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/Cotonti/Cotonti/blob/1.0.0/system/functions.php"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/Cotonti/Cotonti/issues/1891"}, {"source": "disclosure@vulncheck.com", "url": "https://github.com/Cotonti/Cotonti/pull/1899"}, {"source": "disclosure@vulncheck.com", "url": "https://www.vulncheck.com/advisories/cotonti-through-1.0.0-open-redirect-via-unanchored-cot-url-check-regex"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Cotonti/Cotonti/issues/1891"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.0.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Cotonti", "source": "cna", "vendor": "Cotonti"}, "product": "cotonti", "vendor": "cotonti"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,*]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "siena", "vendor": "cotonti"}], "created": "2026-09-19T16:45:16.794963+00:00", "updated": "2026-09-20T00:00:12.210924+00:00", "vendors": ["cotonti", "cotonti$PRODUCT$cotonti", "cotonti$PRODUCT$siena"]}