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Vulnerability details: VCID-cncs-9zzp-q7b1
Vulnerability ID VCID-cncs-9zzp-q7b1
Aliases GHSA-wfrj-qqc2-83cm
GMS-2021-182
Summary Remote command injection when using sendmail email transport ### Impact Sites using the `sendmail` transport as part of their `mail` config are vulnerable to remote command injection due to a [vulnerability](https://github.com/advisories/GHSA-48ww-j4fc-435p) in the `nodemailer` dependency. Ghost defaults to the `direct` transport so this is only exploitable if the `sendmail` transport is explicitly used. ### Patches Fixed in 4.15.0, all sites should upgrade as soon as possible. ### Workarounds * Use an alternative email transport as described in the [docs](https://ghost.org/docs/config/#mail). ### For more information If you have any questions or comments about this advisory: * email us at security@ghost.org
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (3)
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://github.com/advisories/GHSA-48ww-j4fc-435p
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://github.com/TryGhost/Ghost
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://github.com/TryGhost/Ghost/commit/93e4b2eafd18bc8e4c17924e0824e73617e7940c
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N Found at https://github.com/TryGhost/Ghost/security/advisories/GHSA-wfrj-qqc2-83cm
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-12T08:03:23.611555+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-wfrj-qqc2-83cm/GHSA-wfrj-qqc2-83cm.json 38.6.0