CVE-2017-1000452

mediumpriority · track · 30EPSS 0.014 · 72 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.38% (72nd) EPSS

CVSS 6 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–7.5

v2.06mediumAV:N/AC:M/Au:S/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.8 · impact 6.4

v3.07.5highCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 5.9

v3.07.5highCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.06.9mediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-91USprimaryCWE-347USCWE-91US

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
samlify project samlify≤ 2.2.0nvdUScpe:2.3:a:samlify_project:samlify:*:*:*:*:*:*:*:*
npm samlify< 2.4.0-rc5osvUSpkg:npm/samlify

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-8jjf-w7j6-323cSamlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames2018-01-04ghsa · osvUS
Versions of `samlify` prior to 2.4.0-rc5 are vulnerable to Authentication Bypass. The package fails to prevent XML Signature Wrapping, allowing tokens to be reused with different usernames. A remote attacker can modify SAML content for a SAML service provider without invalidating the cryptographic signature, which may allow attackers to bypass primary authentication for the affected SAML service provider. ## Recommendation Upgrade to version 2.4.0-rc5 or later

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-01-02modified 2026-06-17

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+197 more

references (6)

External citations — patches, advisories, analysis.

https://github.com/tngan/samlify/releases/tag/v2.3.0 cnnvd
https://www.whitehats.nl/blog/xml-signature-wrapping-samlify cnnvd
https://github.com/tngan/samlify/releases/tag/v2.3.0 enisa_euvd
https://www.whitehats.nl/blog/xml-signature-wrapping-samlify enisa_euvd
https://github.com/tngan/samlify/releases/tag/v2.3.0Issue TrackingPatchRelease NotesThird Party Advisorynvd
https://www.whitehats.nl/blog/xml-signature-wrapping-samlifyMitigationThird Party Advisorynvd

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