CVE-2025-49136

unknown

Published 2025-06-09 · Modified 2025-06-10

💬 Discuss on Community ✚ Propose mitigation

CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS v4 NEW

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not yet in upstream

VIR risk

1.0

Description

listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user in github.com/knadh/listmonk

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Metasploit modules

auxiliary_gather/listmonk_env_disclosure rank 300

Listmonk Insecure Sprig Template Functions Environment Disclosure

Source fetch failed: fetch_error — view the original via the link above.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/knadh/listmonk	`>=4.0.0,<5.0.2`	`5.0.2`
Go	github.com/knadh/listmonk

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.