CVE-2022-26313Network attack vector

Unauthenticated account hijacking via sign-up flow

Published Mar 8, 2022 · Updated Aug 3, 2024

Improper access control in Siemens Mendix Forgot Password 3.3.0 through 3.5.0 allows remote attackers to hijack user accounts. The sign-up flow can be used against arbitrary existing accounts, but Siemens has not disclosed the missing access check or responsible code locus. The sign-up feature must be enabled in the affected application's configuration; exploitation gives control of the targeted local account.

CVSS severity9.1
Critical
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Siemens Mendix Forgot Password 3.3.0 through 3.5.0 allows remote attackers to hijack user accounts. The sign-up flow can be used against arbitrary existing accounts, but Siemens has not disclosed the missing access check or responsible code locus. The sign-up feature must be enabled in the affected application's configuration; exploitation gives control of the targeted local account.

The record

CVE
CVE-2022-26313
Published
Mar 8, 2022
Updated
Aug 3, 2024
Vendor
Siemens
Product
Mendix Forgot Password
Classifications
CWE-284, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 8, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions >= V3.3.0 < V3.5.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · Mendix Forgot Passwordversion=All versions >= V3.3.0 < V3.5.1

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
9.1Siemens ProductCERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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