{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43937", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-04T16:59:09.089Z", "datePublished": "2026-05-12T14:00:35.599Z", "dateUpdated": "2026-05-12T15:42:43.601Z"}, "containers": {"cna": {"title": "YAF.NET: Pre-Handler Authorization Bypass on Admin Pages Enabling Blind SQL Execution via `/Admin/RunSql`", "problemTypes": [{"descriptions": [{"cweId": "CWE-89", "lang": "en", "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-841", "lang": "en", "description": "CWE-841: Improper Enforcement of Behavioral Workflow", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5"}], "affected": [{"vendor": "YAFNET", "product": "YAFNET", "versions": [{"version": "< 4.0.5", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-12T14:00:35.599Z"}, "descriptions": [{"lang": "en", "value": "YetAnotherForum.NET (YAF.NET) is a C# ASP.NET forum. Prior to 4.0.5, Any admin OnPost\u2026 handler executes its side effects before the ResultFilterAttribute rewrites the response to a 302 to /Info/4. The most impactful abuse is /Admin/RunSql, whose OnPostRunQuery binds Editor from the POST body and passes it straight to IDbAccess.RunSql with no caller check, yielding arbitrary SQL execution for any low-privileged user. This vulnerability is fixed in 4.0.5."}], "source": {"advisory": "GHSA-xhw7-j96h-c3g5", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-12T15:42:40.301152Z", "id": "CVE-2026-43937", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-12T15:42:43.601Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-43937", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-12T15:42:40.301152Z"}}}], "references": [{"url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-12T15:41:02.427Z"}}], "cna": {"title": "YAF.NET: Pre-Handler Authorization Bypass on Admin Pages Enabling Blind SQL Execution via `/Admin/RunSql`", "source": {"advisory": "GHSA-xhw7-j96h-c3g5", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "YAFNET", "product": "YAFNET", "versions": [{"status": "affected", "version": "< 4.0.5"}]}], "references": [{"url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5", "name": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "YetAnotherForum.NET (YAF.NET) is a C# ASP.NET forum. Prior to 4.0.5, Any admin OnPost\u2026 handler executes its side effects before the ResultFilterAttribute rewrites the response to a 302 to /Info/4. The most impactful abuse is /Admin/RunSql, whose OnPostRunQuery binds Editor from the POST body and passes it straight to IDbAccess.RunSql with no caller check, yielding arbitrary SQL execution for any low-privileged user. This vulnerability is fixed in 4.0.5."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-89", "description": "CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-841", "description": "CWE-841: Improper Enforcement of Behavioral Workflow"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-12T14:00:35.599Z"}}}, "cveMetadata": {"cveId": "CVE-2026-43937", "state": "PUBLISHED", "dateUpdated": "2026-05-12T15:42:43.601Z", "dateReserved": "2026-05-04T16:59:09.089Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-05-12T14:00:35.599Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "YetAnotherForum.NET (YAF.NET) is a C# ASP.NET forum. Prior to 4.0.5, Any admin OnPost\u2026 handler executes its side effects before the ResultFilterAttribute rewrites the response to a 302 to /Info/4. The most impactful abuse is /Admin/RunSql, whose OnPostRunQuery binds Editor from the POST body and passes it straight to IDbAccess.RunSql with no caller check, yielding arbitrary SQL execution for any low-privileged user. This vulnerability is fixed in 4.0.5."}], "id": "CVE-2026-43937", "lastModified": "2026-05-13T18:24:58.737", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-05-12T15:16:15.327", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/YAFNET/YAFNET/security/advisories/GHSA-xhw7-j96h-c3g5"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-89"}, {"lang": "en", "value": "CWE-841"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.0.5)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "YAFNET", "source": "cna", "vendor": "YAFNET"}, "product": "yafnet", "vendor": "yafnet"}], "created": "2026-05-12T16:30:19.768687+00:00", "updated": "2026-05-13T10:38:48.643436+00:00", "vendors": ["yafnet", "yafnet$PRODUCT$yafnet"]}