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CRITICAL

CVE-2021-41403

CVSS v3

9.8

CRITICAL

EPSS Score

19.1 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

flatCore-CMS version 2.0.8 calls dangerous functions, causing server-side request forgery vulnerabilities.

Technical details

Published
2022-06-15

Frequently asked questions

What is CVE-2021-41403?

flatCore-CMS version 2.0.8 calls dangerous functions, causing server-side request forgery vulnerabilities.

Is CVE-2021-41403 actively exploited?

Active exploitation of CVE-2021-41403 has not been confirmed. Its EPSS score was 19.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-41403?

CVE-2021-41403 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-41403 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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