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Fencer Vulns
medium 6.8

CVE-2023-45794 json

A vulnerability has been identified in Mendix Applications using Mendix 10 (All versions < V10.4.0), Mendix Applications using Mendix 7 (Al…

published 2023-11-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-50083

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

A vulnerability has been identified in Mendix Applications using Mendix 10 (All versions < V10.4.0), Mendix Applications using Mendix 7 (All versions < V7.23.37), Mendix Applications using Mendix 8 (All versions < V8.18.27), Mendix Applications using Mendix 9 (All versions < V9.24.10). A capture-replay flaw in the platform could have an impact to apps built with the platform, if certain preconditions are met that depend on the app's model and access control design.

This could allow authenticated attackers to access or modify objects without proper authorization, or escalate privileges in the context of the vulnerable app.

Patch / fix

  • siemens mendix 7.23.37, 8.18.27, 9.24.10, 10.4.0

Vendor advisories

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

cisa ICSA-23-320-04 updated cvss 6.8

Siemens Mendix Runtime

  • Siemens Mendix Applications using Mendix 7 <V7.23.37
    affected: fixed in V7.23.37
  • Siemens Mendix Applications using Mendix 8 <V8.18.27
    affected: fixed in V8.18.27
  • Siemens Mendix Applications using Mendix 9 <V9.24.10
    affected: fixed in V9.24.10
  • Siemens Mendix Applications using Mendix 10 <V10.4.0
    affected: fixed in V10.4.0

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
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

  • Siemens Mendix Applications using Mendix 10
  • Siemens Mendix Applications using Mendix 7
  • Siemens Mendix Applications using Mendix 8
  • Siemens Mendix Applications using Mendix 9

Classification

Weakness
  • CWE-294 Authentication Bypass by Capture-replay

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.