What is CVE-2026-111834?

CVE-2026-111834 is a critical-severity vulnerability in Kitae Park Mang Board Wp, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2026-10-21.

How severe is CVE-2026-111834?

Critical severity. CVSS v3 base score is 9.9 out of 10.

Arbitrary file upload in Kitae Park Mang Board Wp

CVE-2026-111834

Unrestricted Upload of File with Dangerous Type vulnerability in Kitae Park Mang Board WP mangboard allows Upload a Web Shell to a Web Server.This issue affects Mang Board WP: from n/a through 2.4.4.

Vulnerability class: Unrestricted File Upload

Published 2026-10-21 · last modified 2026-10-21.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Kitae Park Mang Board Wp

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

patchstack.com/database/wordpress/plugin/mangboard/vulnerability/wordpress-mang… (vdb-entry)

Frequently asked questions

What is CVE-2026-111834?: CVE-2026-111834 is a critical-severity vulnerability in Kitae Park Mang Board Wp, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2026-10-21.
How severe is CVE-2026-111834?: Critical severity. CVSS v3 base score is 9.9 out of 10.