{"cve":"CVE-2020-15159","nvd":{"published":"2020-08-28T22:15:10.657","modified":"2026-06-17T02:56:10.110","status":"Modified","description":"baserCMS 4.3.6 and earlier is affected by Cross Site Scripting (XSS) and Remote Code Execution (RCE). This may be executed by logging in as a system administrator and uploading an executable script file such as a PHP file.The affected components are ThemeFilesController.php and UploaderFilesController.php. This is fixed in version 4.3.7.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H","score":7.6},"cwes":["CWE-79"],"references":["https://basercms.net/security/20200827","https://github.com/baserproject/basercms/commit/16a7b3cd09a0ca355474119c76897eac2034a66d","https://github.com/baserproject/basercms/security/advisories/GHSA-673x-f5wx-fxpw","https://basercms.net/security/20200827","https://github.com/baserproject/basercms/commit/16a7b3cd09a0ca355474119c76897eac2034a66d"],"products":["basercms:basercms"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-15159","score":0.02152,"percentile":0.82152,"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."]}