What is CVE-2021-39426?

CVE-2021-39426 is a critical-severity vulnerability in Seacms, classified under Code Injection. CVSS score: 9.8/10. Published 2022-12-15.

How severe is CVE-2021-39426?

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

RCE in Seacms

CVE-2021-39426

An issue was discovered in /Upload/admin/admin_notify.php in Seacms 11.4 allows attackers to execute arbitrary php code via the notify1 parameter when the action parameter equals set.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.009 (55.3th 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

Seacms — versions 11.4
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

References

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

Frequently asked questions

What is CVE-2021-39426?: CVE-2021-39426 is a critical-severity vulnerability in Seacms, classified under Code Injection. CVSS score: 9.8/10. Published 2022-12-15.
How severe is CVE-2021-39426?: Critical severity. CVSS v3 base score is 9.8 out of 10.