What is CVE-2026-72593?

CVE-2026-72593 is a critical-severity vulnerability in Dulldusk Phpfm, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-10.

How severe is CVE-2026-72593?

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

Auth bypass in Dulldusk Phpfm

CVE-2026-72593

A missing authentication vulnerability in dulldusk/phpfm through 1.8.0 allows an unauthenticated remote attacker to access the full file manager functionality including reading, writing, deleting, and uploading files anywhere on the server filesystem.

Vulnerability class: Broken Authentication

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 (43.6th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.6% 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-306 — Missing Authentication for Critical Function

References

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

Frequently asked questions

What is CVE-2026-72593?: CVE-2026-72593 is a critical-severity vulnerability in Dulldusk Phpfm, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-10.
How severe is CVE-2026-72593?: Critical severity. CVSS v3 base score is 9.8 out of 10.