What is CVE-2026-72592?

CVE-2026-72592 is a critical-severity vulnerability in Dulldusk Phpfm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-08-10.

How severe is CVE-2026-72592?

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

Arbitrary file upload in Dulldusk Phpfm

CVE-2026-72592

An unrestricted file upload vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to execute arbitrary PHP code on the server. The application ships with an empty upload extension filter ( = array) and no authentication enabled by default (auth_pass is empty string), allowing an unauthenticated attacker to upload a PHP webshell and execute it by browsing to the uploaded path.

Vulnerability class: Unrestricted File Upload

Published 2026-08-10 · last modified 2026-08-28.

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.

EPSS exploit prediction

EPSS: 0.005 (44.1th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Dulldusk Phpfm — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)
309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (technical-description)

Frequently asked questions

What is CVE-2026-72592?: CVE-2026-72592 is a critical-severity vulnerability in Dulldusk Phpfm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-08-10.
How severe is CVE-2026-72592?: Critical severity. CVSS v3 base score is 9.8 out of 10.