What is CVE-2021-40555?

CVE-2021-40555 is a medium-severity vulnerability in Flatcore, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-02-16.

How severe is CVE-2021-40555?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Flatcore

CVE-2021-40555

Cross site scripting (XSS) vulnerability in flatCore-CMS 2.2.15 allows attackers to execute arbitrary code via description field on the new page creation form.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.004 (36.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Flatcore — versions 2.0.7
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cve@mitre.org (Exploit, Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-40555?: CVE-2021-40555 is a medium-severity vulnerability in Flatcore, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-02-16.
How severe is CVE-2021-40555?: Medium severity. CVSS v3 base score is 5.4 out of 10.