Home/CVE/An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the
CVE

CVE-2025-56405

An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the

An issue was discovered in litmusautomation litmus-mcp-server thru 0.0.1 allowing unauthorized attackers to control the target's MCP service through the SSE protocol.

HIGH · CVSS 7.5 EPSS 0.00097
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-284Improper Access Control
CWE-306Missing Authentication for Critical Function
▤

Affected Products & Versions

1
litmus mcp serverall versions
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/4github.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Sep 2025 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/August829/CVEP/issues/3Issue Tracking
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