CVE-2025-49136
listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user
MEDIUM 6.5EPSS 1.6%
listmonk is a standalone, self-hosted, newsletter and mailing list manager. Starting in version 4.0.0 and prior to version 5.0.2, the `env` and `expandenv` template functions which is enabled by default in Sprig enables capturing of env variables on host. While this may not be a problem on single-user (super admin) installations, on multi-user installations, this allows non-super-admin users with campaign or template permissions to use the `{{ env }}` template expression to capture sensitive environment variables. Users should upgrade to v5.0.2 to mitigate the issue.
- Affected
- knadh · listmonk
- CVSS v3.1 NVD
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS v3.1 GITHUB
- 9.0 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - EPSS
- 1.58% chance of exploitation in the next 30 days, 75th percentile
- Published
- 2025-06-09
- Updated
- 2025-06-10