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Fencer Vulns
critical 9.1

CVE-2023-29129 json

A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions >= V1.17.3 < V1.18.0), Mendix SAML (Mendix 7 compati…

published 2023-06-13 3 y ago modified 2026-10-24 15 d ago also EUVD-2023-32732

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

A vulnerability has been identified in Mendix SAML (Mendix 7 compatible) (All versions >= V1.17.3 < V1.18.0), Mendix SAML (Mendix 7 compatible) (All versions >= V1.16.4 < V1.17.3), Mendix SAML (Mendix 8 compatible) (All versions >= V2.3.0 < V2.4.0), Mendix SAML (Mendix 8 compatible) (All versions >= V2.2.0 < V2.3.0), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.3.1 < V3.6.1), Mendix SAML (Mendix 9 latest compatible, New Track) (All versions >= V3.1.9 < V3.3.1), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.3.0 < V3.6.0), Mendix SAML (Mendix 9 latest compatible, Upgrade Track) (All versions >= V3.1.8 < V3.3.0), Mendix SAML (Mendix 9.12/9.18 compatible, New Track) (All versions >= V3.3.1 < V3.3.15), Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track) (All versions >= V3.3.0 < V3.3.14), Mendix SAML (Mendix 9.6 compatible, New Track) (All versions >= V3.1.9 < V3.2.7), Mendix SAML (Mendix 9.6 compatible, Upgrade Track) (All versions >= V3.1.8 < V3.2.6). The affected versions of the module insufficiently verify the SAML assertions. This could allow unauthenticated remote attackers to bypass authentication and get access to the application.

This CVE entry describes the incomplete fix for CVE-2023-25957 in a specific non default configuration.

Patch / fix

  • mendix saml 1.18.0, 2.4.0, 3.6.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-075-05 updated cvss 9.1

Siemens Mendix SAML Module

  • Siemens Mendix SAML (Mendix 7 compatible) >=V1.17.3<V1.18.0, >=V1.16.4<V1.17.3
    affected: fixed in V1.17.3 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 8 compatible) >=V2.3.0<V2.4.0, >=V2.2.0<V2.3.0
    affected: fixed in V2.3.0 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9 latest compatible, New Track) >=V3.3.1<V3.6.1, >=V3.1.9<V3.3.1
    affected: fixed in V3.3.1 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9 latest compatible, Upgrade Track) >=V3.3.0<V3.6.0, >=V3.1.8<V3.3.0
    affected: fixed in V3.3.0 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9.6 compatible, New Track) >=V3.1.9<V3.2.7
    affected: fixed in V3.2.7 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9.6 compatible, Upgrade Track) >=V3.1.8<V3.2.6
    affected: fixed in V3.2.6 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9.12/9.18 compatible, New Track) >=V3.3.1<V3.3.15
    affected: fixed in V3.3.15 marketplace.mendix.com
  • Siemens Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track) >=V3.3.0<V3.3.14
    affected: fixed in V3.3.14 marketplace.mendix.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
22 mo ago

Exploit prediction

0.89% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Siemens Mendix SAML (Mendix 7 compatible)
  • Siemens Mendix SAML (Mendix 8 compatible)
  • Siemens Mendix SAML (Mendix 9 latest compatible, New Track)
  • Siemens Mendix SAML (Mendix 9 latest compatible, Upgrade Track)
  • Siemens Mendix SAML (Mendix 9.12/9.18 compatible, New Track)
  • Siemens Mendix SAML (Mendix 9.12/9.18 compatible, Upgrade Track)
  • Siemens Mendix SAML (Mendix 9.6 compatible, New Track)
  • Siemens Mendix SAML (Mendix 9.6 compatible, Upgrade Track)

Classification

Weakness
  • CWE-303 Incorrect Implementation of Authentication Algorithm
  • CWE-287 Improper Authentication

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.