CVE-2023-43623

mediumpriority · track · 0EPSS 0.007 · 52 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.68% (52nd) EPSS

CVSS 5.3 · medium

Is it mine?

22 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cisa_csaf_ot

EPSS · scored 2026-10-28

A vulnerability has been identified in Mendix Forgot Password (Mendix 10 compatible) (All versions < V5.4.0), Mendix Forgot Password (Mendix 7 compatible) (All versions < V3.7.3), Mendix Forgot Password (Mendix 8 compatible) (All versions < V4.1.3), Mendix Forgot Password (Mendix 9 compatible) (All versions < V5.4.0). Applications using the affected module are vulnerable to user enumeration due to distinguishable responses. This could allow an unauthenticated remote attacker to determine if a user is valid or not, enabling a brute force attack with valid users.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMendix Forgot Password (Mendix 10 compatible)siemens_psirt
Update to V5.4.0 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 7 compatible)siemens_psirt
Update to V3.7.3 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 8 compatible)siemens_psirt
Update to V4.1.3 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 9 compatible)siemens_psirt
Update to V5.4.0 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 10 compatible)cisa_csaf_ot
Update to V5.4.0 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 7 compatible)cisa_csaf_ot
Update to V3.7.3 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 8 compatible)cisa_csaf_ot
Update to V4.1.3 or later version
https://marketplace.mendix.com/link/component/1296
FixedMendix Forgot Password (Mendix 9 compatible)cisa_csaf_ot
Update to V5.4.0 or later version
https://marketplace.mendix.com/link/component/1296

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:Csecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · productcert@siemens.com DEexploitability 3.9 · impact 1.4

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-203USCWE-203USCWE-203USCWE-203US

affected products (22)

Products and version ranges known to be affected.

Mendix Forgot Password (Mendix 10 compatible)all versionscisa_csaf_otUS
Mendix Forgot Password (Mendix 7 compatible)all versionscisa_csaf_otUS
Mendix Forgot Password (Mendix 8 compatible)all versionscisa_csaf_otUS
Mendix Forgot Password (Mendix 9 compatible)all versionscisa_csaf_otUS
Siemens Mendix Forgot Password (Mendix 10 compatible)< V5.4.0cisa_csaf_otUS
Siemens Mendix Forgot Password (Mendix 7 compatible)< V3.7.3cisa_csaf_otUS
Siemens Mendix Forgot Password (Mendix 8 compatible)< V4.1.3cisa_csaf_otUS
Siemens Mendix Forgot Password (Mendix 9 compatible)< V5.4.0cisa_csaf_otUS
Siemens Mendix Forgot Password (Mendix 10 compatible)All versions → V5.4.0enisa_euvdEU
Siemens Mendix Forgot Password (Mendix 7 compatible)All versions → V3.7.3enisa_euvdEU
Siemens Mendix Forgot Password (Mendix 8 compatible)All versions → V4.1.3enisa_euvdEU
Siemens Mendix Forgot Password (Mendix 9 compatible)All versions → V5.4.0enisa_euvdEU
Siemens AG Mendix≤ 5.4.0fstec_bduRU
Siemens AG Mendix≤ 3.7.3fstec_bduRU
Siemens AG Mendix≤ 4.1.3fstec_bduRU
mendix forgot password< 3.7.3nvdUScpe:2.3:a:mendix:forgot_password:*:*:*:*:*:*:*:*
mendix forgot password4.0.0 → 4.1.3nvdUScpe:2.3:a:mendix:forgot_password:*:*:*:*:*:*:*:*
mendix forgot password5.0.0 → 5.4.0nvdUScpe:2.3:a:mendix:forgot_password:*:*:*:*:*:*:*:*
Siemens Mendix Forgot Password (Mendix 10 compatible)< V5.4.0siemens_psirtDE
Siemens Mendix Forgot Password (Mendix 7 compatible)< V3.7.3siemens_psirtDE

showing 20 of 22

advisories (2)

Vendor and ecosystem advisories describing this.

SSA-295483SSA-295483: User Enumeration Vulnerability in Mendix Forgot Password Module2023-10-10csaf · siemens_psirtDE
The Mendix Forgot Password module contains a user enumeration vulnerability that could allow an attacker to retrieve valid users. Siemens has released updates for the affected products and recommends to update to the latest versions.
ICSA-23-285-11Siemens Mendix Forgot Password Module2023-10-10icsa · cisa_csaf_otUS
The Mendix Forgot Password module contains a user enumeration vulnerability that could allow an attacker to retrieve valid users. Siemens has released updates for the affected products and recommends to update to the latest versions.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisa_csaf_ot nvd siemens_psirt NVD CVE.org MITRE

published 2023-10-10modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan