{"cve":"CVE-2018-1000658","nvd":{"published":"2018-09-06T17:29:00.457","modified":"2026-06-17T01:33:02.430","status":"Modified","description":"LimeSurvey version prior to 3.14.4 contains a file upload vulnerability in upload functionality that can result in an attacker gaining code execution via webshell. This attack appear to be exploitable via an authenticated user uploading a zip archive which can contains malicious php files that can be called under certain circumstances. This vulnerability appears to have been fixed in after commit 91d143230eb357260a19c8424b3005deb49a47f7 / version 3.14.4.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-434"],"references":["https://github.com/LimeSurvey/LimeSurvey/commit/20fc85edccc80e7e7f162613542792380c44446a","https://github.com/LimeSurvey/LimeSurvey/commit/91d143230eb357260a19c8424b3005deb49a47f7","https://github.com/LimeSurvey/LimeSurvey/commit/20fc85edccc80e7e7f162613542792380c44446a","https://github.com/LimeSurvey/LimeSurvey/commit/91d143230eb357260a19c8424b3005deb49a47f7"],"products":["limesurvey:limesurvey"],"source":"nvd","synced_at":"2026-10-19T20:53:14.491561039+00:00"},"epss":{"cve":"CVE-2018-1000658","score":0.02137,"percentile":0.82021,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}