{"schemaVersion":3,"id":"CVE-2017-16790","aliases":["UBUNTU-CVE-2017-16790","DEBIAN-CVE-2017-16790"],"status":"published","duplicateOf":null,"title":null,"description":"An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. When a form is submitted by the user, the request handler classes of the Form component merge POST data and uploaded files data into one array. This big array forms the data that are then bound to the form. At this stage there is no difference anymore between submitted POST data and uploaded files. A user can send a crafted HTTP request where the value of a \"FileType\" is sent as normal POST data that could be interpreted as a local file path on the server-side (for example, \"file:///etc/passwd\"). If the application did not perform any additional checks about the value submitted to the \"FileType\", the contents of the given file on the server could have been exposed to the attacker.","dates":{"published":"2018-08-06T21:00:00.000Z","modified":"2024-08-05T20:35:21.239Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4,"severity":"medium","vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true}]},"epss":{"probability":0.01568,"percentile":0.74967,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.01299999999999999,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.01555},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0131,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01568,"percentile":0.74967}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0131,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.01555,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.01568,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.01568,"percentile":0.74967}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-20","name":"Improper Input Validation","description":"The product receives input or data, but it does\n        not validate or incorrectly validates that the input has the\n        properties that are required to process the data safely and\n        correctly.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/20.html"}],"affected":[{"vendor":"debian","product":"symfony","name":"symfony","label":"symfony","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/symfony","purlType":"deb","versions":[{"text":"< 3.4.0+dfsg-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.4.0+dfsg-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"symfony","name":"symfony","label":"symfony","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/symfony","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"debian","product":"debian_linux","name":"debian linux","label":"debian_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"9.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"9.0","eol":{"isEol":true,"eolDate":"2022-07-01T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"9","label":"9 (Stretch)","eolFrom":"2022-07-01T00:00:00.000Z","isLts":false,"isMaintained":true,"latestVersion":"9.13"},"product":{"name":"debian","label":"Debian","category":"os"}},"hubHref":"/vendor/debian/debian_linux"},{"vendor":"sensiolabs","product":"symfony","name":"symfony","label":"symfony","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 2.7.0, ≤ 2.7.37","noFixRecorded":false,"fixedIn":null},{"text":"≥ 2.8.0, ≤ 2.8.30","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.2.0, ≤ 3.2.13","noFixRecorded":false,"fixedIn":null},{"text":"≥ 3.3.0, ≤ 3.3.12","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 2.7.0, ≤ 2.7.37 | ≥ 2.8.0, ≤ 2.8.30 | ≥ 3.2.0, ≤ 3.2.13 | ≥ 3.3.0, ≤ 3.3.12","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"symfony","label":"Symfony","category":"framework"}},"hubHref":"/vendor/sensiolabs/symfony"}],"affectedCount":4,"eol":{"hasEol":true,"count":1},"references":[{"url":"https://symfony.com/blog/cve-2017-16790-ensure-that-submitted-data-are-uploaded-files","label":"symfony.com/blog/cve-2017-16790-ensure-that-submitted-data-are-uploaded-files","hostname":"symfony.com","tags":["X Refsource CONFIRM","Issue Tracking","Patch","Vendor Advisory","REPORT"]},{"url":"https://www.debian.org/security/2018/dsa-4262","label":"www.debian.org/security/2018/dsa-4262","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN","Third Party Advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-16790","label":"ubuntu.com/security/CVE-2017-16790","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://github.com/symfony/symfony/pull/24993","label":"github.com/symfony/symfony/pull/24993","hostname":"github.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-16790","label":"www.cve.org/CVERecord?id=CVE-2017-16790","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-16790","label":"security-tracker.debian.org/tracker/CVE-2017-16790","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DSA-4262-1"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2018-08-06T21:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T20:35:21.239Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:46:35.781Z","stale":false,"partial":false}}