{"cve":"CVE-2021-43257","nvd":{"published":"2022-04-14T20:15:09.157","modified":"2026-06-17T04:10:44.707","status":"Modified","description":"Lack of Neutralization of Formula Elements in the CSV API of MantisBT before 2.25.3 allows an unprivileged attacker to execute code or gain access to information when a user opens the csv_export.php generated CSV file in Excel.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-1236"],"references":["https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e","https://www.mantisbt.org/bugs/view.php?id=29130","https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e","https://www.mantisbt.org/bugs/view.php?id=29130"],"products":["mantisbt:mantisbt"],"source":"nvd","synced_at":"2026-10-19T21:30:03.577988018+00:00"},"epss":{"cve":"CVE-2021-43257","score":0.00979,"percentile":0.62205,"date":"2026-11-01"},"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."]}