{"api_version":"1","generated_at":"2026-07-23T07:38:02+00:00","cve":"CVE-2017-17672","urls":{"html":"https://cve.report/CVE-2017-17672","api":"https://cve.report/api/cve/CVE-2017-17672.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2017-17672","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-17672"},"summary":{"title":"CVE-2017-17672","description":"In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.","state":"PUBLISHED","assigner":"mitre","published_at":"2017-12-14 00:29:00","updated_at":"2025-04-20 01:37:25"},"problem_types":["CWE-502","n/a"],"metrics":[{"version":"3.0","source":"nvd@nist.gov","type":"Primary","score":"9.8","severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"7.5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"}}],"references":[{"url":"https://blogs.securiteam.com/index.php/archives/3573","name":"https://blogs.securiteam.com/index.php/archives/3573","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"],"title":"401 Authorization Required","mime":"text/html","httpstatus":"401","archivestatus":"404"},{"url":"https://www.exploit-db.com/exploits/43362/","name":"https://www.exploit-db.com/exploits/43362/","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory","VDB Entry"],"title":"vBulletin 5.x - 'cacheTemplates' Remote Arbitrary File Deletion - Multiple webapps Exploit","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-17672","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-17672","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2017","cve_id":"17672","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"vbulletin","cpe5":"vbulletin","cpe6":"5.0.0","cpe7":"beta_11","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"17672","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"vbulletin","cpe5":"vbulletin","cpe6":"5.0.0","cpe7":"beta_28","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2017","cve_id":"17672","vulnerable":"1","versionEndIncluding":"5.3.3","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"vbulletin","cpe5":"vbulletin","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2017","cve_id":"17672","cve":"CVE-2017-17672","epss":"0.146990000","percentile":"0.945600000","score_date":"2026-05-18","updated_at":"2026-05-19 00:10:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-05T20:59:17.366Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"43362","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred"],"url":"https://www.exploit-db.com/exploits/43362/"},{"tags":["x_refsource_MISC","x_transferred"],"url":"https://blogs.securiteam.com/index.php/archives/3573"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2017-12-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2017-12-19T10:57:01.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"43362","tags":["exploit","x_refsource_EXPLOIT-DB"],"url":"https://www.exploit-db.com/exploits/43362/"},{"tags":["x_refsource_MISC"],"url":"https://blogs.securiteam.com/index.php/archives/3573"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2017-17672","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"43362","refsource":"EXPLOIT-DB","url":"https://www.exploit-db.com/exploits/43362/"},{"name":"https://blogs.securiteam.com/index.php/archives/3573","refsource":"MISC","url":"https://blogs.securiteam.com/index.php/archives/3573"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2017-17672","datePublished":"2017-12-14T00:00:00.000Z","dateReserved":"2017-12-13T00:00:00.000Z","dateUpdated":"2024-08-05T20:59:17.366Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2017-12-14 00:29:00","lastModifiedDate":"2025-04-20 01:37:25","problem_types":["CWE-502","n/a"],"metrics":{"cvssMetricV30":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:vbulletin:vbulletin:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0.1","versionEndIncluding":"5.3.3","matchCriteriaId":"17BE6DA7-79B5-4002-855B-FA6DD322E5D3"},{"vulnerable":true,"criteria":"cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_11:*:*:*:*:*:*","matchCriteriaId":"68126BD0-05AD-4702-843B-E17FA39BD3DB"},{"vulnerable":true,"criteria":"cpe:2.3:a:vbulletin:vbulletin:5.0.0:beta_28:*:*:*:*:*:*","matchCriteriaId":"342AD6B6-0447-4E44-BEF6-C5CE7C134C4D"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2017","CveId":"17672","Ordinal":"1","Title":"CVE-2017-17672","CVE":"CVE-2017-17672","Year":"2017"},"notes":[{"CveYear":"2017","CveId":"17672","Ordinal":"1","NoteData":"In vBulletin through 5.3.x, there is an unauthenticated deserialization vulnerability that leads to arbitrary file deletion and, under certain circumstances, code execution, because of unsafe usage of PHP's unserialize() in vB_Library_Template's cacheTemplates() function, which is a publicly exposed API. This is exploited with the templateidlist parameter to ajax/api/template/cacheTemplates.","Type":"Description","Title":"CVE-2017-17672"},{"CveYear":"2017","CveId":"17672","Ordinal":"2","NoteData":"2017-12-13","Type":"Other","Title":"Published"},{"CveYear":"2017","CveId":"17672","Ordinal":"3","NoteData":"2017-12-19","Type":"Other","Title":"Modified"}]}}}