{"cve":"CVE-2021-26631","nvd":{"published":"2022-05-19T15:15:07.810","modified":"2026-06-17T03:43:35.890","status":"Modified","description":"Improper input validation vulnerability in Mangboard commerce package could lead to occur for abnormal request. A remote attacker can exploit this vulnerability to manipulate the total order amount into a negative number and then pay for the order.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","score":7.5},"cwes":["CWE-20"],"references":["https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66724","https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66724"],"products":["mangboard:commerce"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2021-26631","score":0.01055,"percentile":0.64418,"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."]}