CVE-2021-40616Public exploitNetwork attack vector

Administrator account takeover via direct password edit

Published Jun 14, 2022 · Updated Aug 4, 2024

Incorrect authorization in ThinkCMF 5.1.7 allows remote authenticated users to reset the primary administrator account password. AdminRbacController processes a direct request for account ID 1 from users holding background user-management group authority instead of enforcing the normal password-change restriction. That delegated privilege is sufficient to replace the primary administrator's credentials and take control of the account.

CVSS severity6.5
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in ThinkCMF 5.1.7 allows remote authenticated users to reset the primary administrator account password. AdminRbacController processes a direct request for account ID 1 from users holding background user-management group authority instead of enforcing the normal password-change restriction. That delegated privilege is sufficient to replace the primary administrator's credentials and take control of the account.

The record

CVE
CVE-2021-40616
Published
Jun 14, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-863, CWE-425, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-425Direct Request ('Forced Browsing')
T1098Account Manipulation

Public exploit references

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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