{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2019-25685", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-04-05T15:21:44.156Z", "datePublished": "2026-04-05T20:45:33.893Z", "dateUpdated": "2026-04-06T18:02:53.224Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-05T20:45:33.893Z"}, "datePublic": "2019-03-07T00:00:00.000Z", "title": "phpBB Arbitrary File Upload via Phar Deserialization", "descriptions": [{"lang": "en", "value": "phpBB contains an arbitrary file upload vulnerability that allows authenticated attackers to upload malicious files by exploiting the plupload functionality and phar:// stream wrapper. Attackers can upload a crafted zip file containing serialized PHP objects that execute arbitrary code when deserialized through the imagick parameter in attachment settings."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "cweId": "CWE-22", "type": "CWE"}]}], "affected": [{"vendor": "phpBB", "product": "phpBB", "versions": [{"version": "3.2.3", "status": "affected"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:phpbb:phpbb:3.2.3:*:*:*:*:*:*:*"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 8.7, "baseSeverity": "HIGH", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"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"}, "format": "CVSS"}], "references": [{"url": "https://www.exploit-db.com/exploits/46512", "name": "ExploitDB-46512", "tags": ["exploit"]}, {"name": "VulnCheck Advisory: phpBB Arbitrary File Upload via Phar Deserialization", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/phpbb-arbitrary-file-upload-via-phar-deserialization"}], "x_generator": {"engine": "vulncheck"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2019-25685", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-06T17:56:18.373231Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T18:02:53.224Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2019-25685", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-04-06T17:56:18.373231Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-06T17:58:53.563Z"}}], "cna": {"title": "phpBB Arbitrary File Upload via Phar Deserialization", "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}}, {"format": "CVSS", "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": "phpBB", "product": "phpBB", "versions": [{"status": "affected", "version": "3.2.3"}]}], "datePublic": "2019-03-07T00:00:00.000Z", "references": [{"url": "https://www.exploit-db.com/exploits/46512", "name": "ExploitDB-46512", "tags": ["exploit"]}, {"url": "https://www.vulncheck.com/advisories/phpbb-arbitrary-file-upload-via-phar-deserialization", "name": "VulnCheck Advisory: phpBB Arbitrary File Upload via Phar Deserialization", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck"}, "descriptions": [{"lang": "en", "value": "phpBB contains an arbitrary file upload vulnerability that allows authenticated attackers to upload malicious files by exploiting the plupload functionality and phar:// stream wrapper. Attackers can upload a crafted zip file containing serialized PHP objects that execute arbitrary code when deserialized through the imagick parameter in attachment settings."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:phpbb:phpbb:3.2.3:*:*:*:*:*:*:*", "vulnerable": true}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-04-05T20:45:33.893Z"}}}, "cveMetadata": {"cveId": "CVE-2019-25685", "state": "PUBLISHED", "dateUpdated": "2026-04-06T18:02:53.224Z", "dateReserved": "2026-04-05T15:21:44.156Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-04-05T20:45:33.893Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:phpbb:phpbb:*:*:*:*:*:*:*:*", "matchCriteriaId": "296EDC9D-1561-4848-BF04-2E298DB56E40", "versionEndIncluding": "3.2.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "phpBB contains an arbitrary file upload vulnerability that allows authenticated attackers to upload malicious files by exploiting the plupload functionality and phar:// stream wrapper. Attackers can upload a crafted zip file containing serialized PHP objects that execute arbitrary code when deserialized through the imagick parameter in attachment settings."}], "id": "CVE-2019-25685", "lastModified": "2026-04-09T19:07:46.060", "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": "disclosure@vulncheck.com", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "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": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}]}, "published": "2026-04-05T21:16:47.140", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Exploit", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/46512"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/phpbb-arbitrary-file-upload-via-phar-deserialization"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "disclosure@vulncheck.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "3.2.3"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "phpBB", "source": "cna", "vendor": "phpBB"}, "product": "phpbb", "vendor": "phpbb"}], "analysis": {"en": {"generated_at": "2026-04-06T00:21:56.697340+00:00", "value": {"mitigation_remediation": ["Apply the latest phpBB release (e.g., 3.2.4) which fixes the upload deserialization flaw.", "Until a patch is available, disable the phar:// stream wrapper in the PHP configuration or modify the file\u2011upload settings to reject ZIP files.", "Restrict file\u2011type validation and remove imagick from attachment options to reduce the attack surface.", "Ensure the phpBB installation runs with the least\u2011privilege file permissions so that uploaded files cannot be executed.", "Monitor upload logs for unusual activity and enforce strong authentication on the plupload feature."], "summary": {"action": "Immediate Patch", "impact": "Remote code execution"}, "threat_synthesis": {"affected_systems": "The vulnerability affects phpBB installations running version 3.2.3 and any newer releases before the fix is applied. In particular, apps relying on the plupload component with the phar:// stream enabled are at risk. If a site is running phpBB 3.2.3 or has not yet updated to a patched release, it remains vulnerable.", "description_and_impact": "This flaw allows an authenticated attacker to upload a malicious zip file that, when processed through the phar:// stream wrapper, deserializes PHP objects and triggers code execution. The weakness is directory traversal/absolute path injection (CWE\u201122). A successful exploit grants full control over the hosting server, compromising confidentiality, integrity, and availability. The vulnerability can be triggered via the plupload interface when image attachments use the imagick parameter.", "risk_and_exploitability": "The CVSS score of 8.7 denotes a high risk level. Exploitation requires the target to be reachable over HTTP and the attacker to be authenticated and able to upload files; no public exploit has been documented, and the EPSS score is not available. The attacker can gain arbitrary code execution, which can lead to system compromise. The attack vector is remote over network via the file\u2011upload interface, likely a web\u2011application vulnerability. Since the vulnerability is listed in no KEV catalog, the opportunity for targeted attacks depends on the exposure of the application."}}}}, "created": "2026-04-06T20:22:32.348220+00:00", "updated": "2026-04-06T21:48:24.903606+00:00", "vendors": ["phpbb", "phpbb$PRODUCT$phpbb"]}