CVE-2026-91827

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-91827", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "state": "PUBLISHED", "assignerShortName": "WPScan", "dateReserved": "2026-09-15T08:07:50.100Z", "datePublished": "2026-09-22T06:58:01.461Z", "dateUpdated": "2026-09-22T10:05:56.864Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-09-22T06:58:01.461Z"}, "title": "Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV Export", "problemTypes": [{"descriptions": [{"description": "CWE-502 Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "affected": [{"vendor": "Unknown", "product": "Ninja Forms", "versions": [{"status": "affected", "versionType": "semver", "version": "3.15.3", "lessThan": "3.15.4"}], "defaultStatus": "unaffected", "collectionURL": "https://wordpress.org/plugins"}], "descriptions": [{"lang": "en", "value": "The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution."}], "references": [{"url": "https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "credits": [{"lang": "en", "value": "Karthik Ramakrishnan", "type": "finder"}, {"lang": "en", "value": "WPScan", "type": "coordinator"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "WPScan CVE Generator"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-502", "lang": "en", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-22T10:05:51.795663Z", "id": "CVE-2026-91827", "options": [{"Exploitation": "none"}, {"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": "2026-09-22T10:05:56.864Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-91827", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-22T10:05:51.795663Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-22T10:05:43.776Z"}}], "cna": {"title": "Ninja Forms 3.15.3 - Unauthenticated PHP Object Injection via CSV Export", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Karthik Ramakrishnan"}, {"lang": "en", "type": "coordinator", "value": "WPScan"}], "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"}}], "affected": [{"vendor": "Unknown", "product": "Ninja Forms", "versions": [{"status": "affected", "version": "3.15.3", "lessThan": "3.15.4", "versionType": "semver"}], "collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected"}], "references": [{"url": "https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/", "tags": ["exploit", "vdb-entry", "technical-description"]}], "x_generator": {"engine": "WPScan CVE Generator"}, "descriptions": [{"lang": "en", "value": "The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "shortName": "WPScan", "dateUpdated": "2026-09-22T06:58:01.461Z"}}}, "cveMetadata": {"cveId": "CVE-2026-91827", "state": "PUBLISHED", "dateUpdated": "2026-09-22T10:05:56.864Z", "dateReserved": "2026-09-15T08:07:50.100Z", "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81", "datePublished": "2026-09-22T06:58:01.461Z", "assignerShortName": "WPScan"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"collectionURL": "https://wordpress.org/plugins", "defaultStatus": "unaffected", "product": "Ninja Forms", "vendor": "Unknown", "versions": [{"lessThan": "3.15.4", "status": "affected", "version": "3.15.3", "versionType": "semver"}]}], "source": "contact@wpscan.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Ninja Forms WordPress plugin 3.15.3 does not prevent user-submitted form field values from being deserialised when an administrator later exports form submissions to CSV, allowing unauthenticated attackers to perform PHP Object Injection; if a suitable POP chain is present via another installed plugin or theme, this can lead to actions such as arbitrary file operations or remote code execution."}], "id": "CVE-2026-91827", "lastModified": "2026-09-22T19:41:38.447", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "contact@wpscan.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-91827", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-22T10:05:51.795663Z", "version": "2.0.3"}}]}, "published": "2026-09-22T07:16:31.093", "references": [{"source": "contact@wpscan.com", "url": "https://wpscan.com/vulnerability/7b279db2-92e0-4122-b5c6-aa12b7b01858/"}], "sourceIdentifier": "contact@wpscan.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[3.15.3,3.15.4)"}}], "enrichment": {"confidence": 90.0, "confidence_source": "inferred", "scores": [{"score": 90.0, "source": "inferred"}, {"score": 98.0, "source": "matching"}]}, "original": {"product": "Ninja Forms", "source": "cna", "vendor": "Unknown"}, "product": "ninja_forms", "vendor": "ninjaforms"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "created": "2026-09-22T08:30:17.102855+00:00", "updated": "2026-09-22T08:30:17.311262+00:00", "vendors": ["ninjaforms", "ninjaforms$PRODUCT$ninja_forms", "wordpress", "wordpress$PRODUCT$wordpress"], "weaknesses": ["CWE-502"]}