{"cve":"CVE-2021-39172","nvd":{"published":"2021-08-27T23:15:06.900","modified":"2026-06-17T04:03:14.670","status":"Modified","description":"Cachet is an open source status page system. Prior to version 2.5.1, authenticated users, regardless of their privileges (User or Admin), can exploit a new line injection in the configuration edition feature (e.g. mail settings) and gain arbitrary code execution on the server. This issue was addressed in version 2.5.1 by improving `UpdateConfigCommandHandler` and preventing the use of new lines characters in new configuration values. As a workaround, only allow trusted source IP addresses to access to the administration dashboard.","cvss_v4":null,"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-93"],"references":["https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/","https://github.com/fiveai/Cachet/releases/tag/v2.5.1","https://github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6","https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/","https://github.com/fiveai/Cachet/releases/tag/v2.5.1"],"products":["catchethq:catchet"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-39172","score":0.29172,"percentile":0.98169,"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."]}