LiveActive security incident?Get immediate response
CVE Record

CVE-2021-40616: thinkcmf v5.1.7 has an unauthorized vulnerability.

thinkcmf v5.1.7 has an unauthorized vulnerability. The attacker can modify the password of the administrator account with id 1 through the background user management group permissions. The use condition is that the background user management group authority is required.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

A backend user with specific user-management permissions may be able to reset the main administrator password in ThinkCMF 5.1.7. That could turn a limited administrative role into full site control. Public sources do not confirm active exploitation or a vendor-fixed version.

Executive priority

Treat as a targeted access-control risk for any ThinkCMF 5.1.7 site with delegated backend administration. Prioritize inventory and permission review before broad emergency response, because severity, exploit activity, and patch status are not confirmed in the sources.

Technical view

The CVE record reports ThinkCMF v5.1.7 allows a user with background user-management group authority to modify the password of administrator account id 1. This appears to be an authorization weakness in backend user management. Sources do not provide CVSS, CWE, CPE, patch version, or root-cause detail.

Likely exposure

Likely limited to deployments of ThinkCMF v5.1.7 where non-owner backend users hold user-management group authority. Exposure evidence is incomplete because the bundle lists affected vendor/product/CPE as n/a.

Exploitation context

No KEV listing is present, and the provided sources do not state active exploitation. The described abuse requires existing backend user-management group authority, so this is not evidenced as unauthenticated remote compromise.

Researcher notes

The public record is sparse. The only concrete behavior is password modification for admin id 1 by a user with background user-management group authority. Do not assume broader versions, unauthenticated access, or exploit maturity without additional vendor evidence.

Mitigation direction

  • Identify any ThinkCMF v5.1.7 deployments.
  • Review vendor project guidance and issue #722 for fixed-version information.
  • Restrict backend user-management group authority to trusted administrators only.
  • Audit administrator account id 1 password and recent account-management changes.
  • Back up and update affected installations when a vendor-supported fix is confirmed.

Validation and detection

  • Confirm the installed ThinkCMF version from application metadata or deployment records.
  • Review backend roles with user-management group authority.
  • Check logs for password changes to administrator account id 1.
  • Verify no untrusted or stale backend accounts have elevated permissions.
  • Document whether vendor guidance names a fixed release.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-40616 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.