{"cve":"CVE-2022-50898","nvd":{"published":"2026-01-13T23:15:51.833","modified":"2026-06-17T05:24:22.697","status":"Modified","description":"NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server's pages directory by exploiting the page creation mechanism without proper input sanitization.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.6},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/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/ishell/Exploits-Archives/blob/master/2009-exploits/0904-exploits/nanocms-multi.txt","https://github.com/kalyan02/NanoCMS","https://www.exploit-db.com/exploits/50997","https://www.vulncheck.com/advisories/nanocms-remote-code-execution-rce-authenticated","https://github.com/ishell/Exploits-Archives/blob/master/2009-exploits/0904-exploits/nanocms-multi.txt"],"products":["kalyan02:nanocms"],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2022-50898","score":0.01321,"percentile":0.7088,"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."]}