What is CVE-2023-31689?

CVE-2023-31689 is a critical-severity vulnerability in Wcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-05-22.

How severe is CVE-2023-31689?

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

Arbitrary file upload in Wcms

CVE-2023-31689

In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish parameter and the textAreaCode parameter. It can write arbitrary strings into custom file names and upload any files, and write malicious code to execute scripts to trigger command execution.

Vulnerability class: Unrestricted File Upload

EPSS: 0.202 (97.2th 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

Wcms — versions 0.3.2
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (Exploit, Issue Tracking)

Frequently asked questions

What is CVE-2023-31689?: CVE-2023-31689 is a critical-severity vulnerability in Wcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-05-22.
How severe is CVE-2023-31689?: Critical severity. CVSS v3 base score is 9.8 out of 10.