What is CVE-2021-40098?

CVE-2021-40098 is a critical-severity vulnerability in Concretecms Concrete_cms, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-09-27.

How severe is CVE-2021-40098?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Path Traversal in Concretecms Concrete_cms

CVE-2021-40098

An issue was discovered in Concrete CMS through 8.5.5. Path Traversal leading to RCE via external form by adding a regular expression.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.016 (72.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Concretecms Concrete_cms
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

References

cve@mitre.org (Permissions Required, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40098?: CVE-2021-40098 is a critical-severity vulnerability in Concretecms Concrete_cms, classified under Path Traversal. CVSS score: 9.8/10. Published 2021-09-27.
How severe is CVE-2021-40098?: Critical severity. CVSS v3 base score is 9.8 out of 10.