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CVE-2025-11287

31
FAUCET Score

CVE-2025-11287 is a critical improper authentication vulnerability affecting samanhappy MCPHub up to version 0.9.10, specifically within the handleSseConnectionfunction in src/services/sseService.ts. This flaw allows for remote exploitation with low attack complexity, potentially leading to complete compromise of confidentiality, integrity, and availability, as indicated by its CVSS score of 9.8. While a public exploit is available, there is currently no evidence of active exploitation, and community discussion and media coverage are minimal. The vendor has not responded to disclosure attempts.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.9.10CPE matchmatch criteria
cpe:2.3:a:mcphubx:mcphub:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.5MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 24th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

npmGHSA-v7c4-33vf-cqqqmedium

MCPHub has an Improper Authorization vulnerability via its handleSseConnection function

Oct 5, 2025

References

github.com / August829/YU1/issues/8
ExploitIssue Tracking
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry