{"id":"CVE-2025-27913","aliases":["EUVD-2025-7821","GHSA-28wr-h897-6hmv"],"status":"published","title":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and...","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","severity":{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00187,"percentile":0.08354,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-348"],"published":"2025-03-10T00:00:00Z","modified":"2026-10-28T02:30:37Z","products":[{"vendor":"freepbx","product":"api"},{"vendor":"passbolt","product":"api"},{"vendor":"passbolt","product":"passbolt_api"}],"references":[{"url":"https://www.passbolt.com/incidents/host-header-injection","tags":["Mitigation","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27913","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-28wr-h897-6hmv"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27913.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-27913","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","status":"published","published":"2025-03-10T00:00:00Z","modified":"2025-03-11T02:52:25.597Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"low","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:32:42.751171Z"}],"euvd":[{"id":"EUVD-2025-7821","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","status":"published","published":"2025-03-10T00:00:00Z","modified":"2025-03-11T02:52:25Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"low"}],"updated_at":"2026-11-02T20:53:08.182954Z"}],"ghsa":[{"id":"GHSA-28wr-h897-6hmv","title":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and...","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","status":"published","published":"2025-03-10T21:31:12Z","modified":"2025-03-11T03:30:50Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:00:12.026932Z"}],"nvd":[{"id":"CVE-2025-27913","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","status":"published","published":"2025-03-10T20:15:14.5Z","modified":"2026-06-17T09:04:22.657Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T14:10:53.101324Z"}],"osv":[{"id":"CVE-2025-27913","description":"Passbolt API before 5, if the server is misconfigured (with an incorrect installation process and disregarding of Health Check results), can send email messages with a domain name taken from an attacker-controlled HTTP Host header.","status":"published","published":"2025-03-10T00:00:00Z","modified":"2026-10-28T02:30:37.812550483Z","cvss":[{"version":"4.0","score":2.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N","level":"low"}],"cwes":["CWE-348"],"updated_at":"2026-11-02T15:44:47.708311Z"}]}}