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NVD / CVE Program· CNA mitre

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

MediumCVSS 6.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.77% (FIRST EPSS); higher than 56.1% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: thinkcmf/thinkcmf (Packagist) 6.0.0.

Low priority for now. Upgrade to thinkcmf/thinkcmf (Packagist) 6.0.0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Jun 14, 2022
Updated
Jun 17, 2026
EPSS
0.7% · 56th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
thinkcmfthinkcmf

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • thinkcmf thinkcmf5.1.7

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Packagistthinkcmf/thinkcmfbefore 6.0.06.0.0

Same product

thinkcmf: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-20601An issue in ThinkCMF X2.2.2 and below allows attackers to execute arbitrary code via a crafted packet.
    41Plan
  • CVE-2019-6713app\admin\controller\RouteController.php in ThinkCMF 5.0.190111 allows remote attackers to execute arbitrary PHP code by using vectors…
    40Plan
  • CVE-2024-31615ThinkCMF 6.0.9 is vulnerable to File upload via UeditorController.php.
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2019-7580Feb 7, 2019 · ThinkCMF 5.0.190111 allows remote attackers to execute arbitrary PHP code via the portal/admin_category/addpost.html alias parameter…
    38Monitor
  • ← EarlierCVE-2020-18151Jul 14, 2021 · Cross Site Request Forgery (CSRF) vulnerability in ThinkCMF v5.1.0, which can add an admin account.
    26Monitor
  • Later →CVE-2022-40489Dec 1, 2022 · ThinkCMF version 6.0.7 is affected by a Cross Site Request Forgery (CSRF) vulnerability that allows a Super Administrator user to be…
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Packagist:thinkcmf/thinkcmf6.0.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-425 · Direct Request ('Forced Browsing')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

All records