{"id":"CVE-2025-49136","state":"PUBLISHED","title":"listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user","description":"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.","publishedAt":"2025-06-09T16:21:48.266Z","updatedAt":"2025-06-10T13:25:02.262Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["knadh listmonk"],"affected":[{"vendor":"knadh","product":"listmonk","versions":[{"version":">= 4.0.0, < 5.0.2","status":"affected"}]}],"references":["https://github.com/knadh/listmonk/security/advisories/GHSA-jc7g-x28f-3v3h","https://github.com/knadh/listmonk/commit/d27d2c32cf3af2d0b24e29ea5a686ba149b49b3e","https://github.com/knadh/listmonk/releases/tag/v5.0.2"],"weaknesses":["CWE-1336"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/49xxx/CVE-2025-49136.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-49136","state":"PUBLISHED","datePublished":"2025-06-09T16:21:48.266Z","dateUpdated":"2025-06-10T13:25:02.262Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-06-02T10:39:41.634Z"},"containers":{"cna":{"title":"listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user","descriptions":[{"lang":"en","value":"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":[{"vendor":"knadh","product":"listmonk","versions":[{"version":">= 4.0.0, < 5.0.2","status":"affected"}]}],"references":[{"url":"https://github.com/knadh/listmonk/security/advisories/GHSA-jc7g-x28f-3v3h","name":"https://github.com/knadh/listmonk/security/advisories/GHSA-jc7g-x28f-3v3h","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/knadh/listmonk/commit/d27d2c32cf3af2d0b24e29ea5a686ba149b49b3e","name":"https://github.com/knadh/listmonk/commit/d27d2c32cf3af2d0b24e29ea5a686ba149b49b3e","tags":["x_refsource_MISC"]},{"url":"https://github.com/knadh/listmonk/releases/tag/v5.0.2","name":"https://github.com/knadh/listmonk/releases/tag/v5.0.2","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1336","lang":"en","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-06-09T16:21:48.266Z"},"source":{"advisory":"GHSA-jc7g-x28f-3v3h","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/knadh/listmonk/security/advisories/GHSA-jc7g-x28f-3v3h","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-10T13:24:43.793880Z","id":"CVE-2025-49136","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-10T13:25:02.262Z"}}]}}}