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CVE-2017-1000452

25
FAUCET Score

CVE-2017-1000452 describes an XML Signature Wrapping vulnerability affecting Samlify 2.2.0 and earlier, as well as its predecessor Express-saml2, allowing attackers to impersonate arbitrary users. This high-severity vulnerability (CVSS 7.5) has a network attack vector and high impact on confidentiality, integrity, and availability, despite requiring low privileges and high attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.2.0CPE matchmatch criteria
cpe:2.3:a:samlify_project:samlify:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.38%
Probability of exploitation in next 30 days
EPSS Percentile
69.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0138 is in the 66th percentile among its peer group of 1,162 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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: 2.4.0-rc5

Vendor Advisories (1)

npmGHSA-8jjf-w7j6-323chigh

Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames

Jan 4, 2018

References

github.com / tngan/samlify/releases/tag/v2.3.0
Issue TrackingPatchRelease NotesThird Party Advisory
whitehats.nl / blog/xml-signature-wrapping-samlify
MitigationThird Party Advisory