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CVE-2025-47949

25
FAUCET Score

CVE-2025-47949 describes a critical Signature Wrapping vulnerability in the samlify Node.js library, affecting versions prior to 2.10.0. This flaw allows an unauthenticated attacker to forge SAML Responses and impersonate any user, provided they possess a signed XML document from the identity provider. Rated 7.5 HIGH on CVSS, the vulnerability is easily exploitable over the network with low attack complexity, leading to a high impact on integrity. While there are no public exploits or Metasploit modules, the vulnerability has garnered significant community discussion and media coverage, indicating heightened awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.10.0CPE matchmatch criteria
cpe:2.3:a:samlify_project:samlify:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

9.9CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/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
HIGH
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 16th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: samlifyFixed in: 2.10.0

Vendor Advisories (1)

npmGHSA-r683-v43c-6xqvcritical

samlify SAML Signature Wrapping attack

May 19, 2025

References

github.com / tngan/samlify/commit/115679acd89f0a37ea3ebd8fff7db54fca3e8af3
Patch
github.com / tngan/samlify/security/advisories/GHSA-r683-v43c-6xqv
Vendor Advisory