What is CVE-2020-11011?

CVE-2020-11011 is a critical-severity vulnerability in Alanaktion Phproject, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2020-04-22.

How severe is CVE-2020-11011?

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

Arbitrary file upload in Alanaktion Phproject

CVE-2020-11011

In Phproject before version 1.7.8, there's a vulnerability which allows users with access to file uploads to execute arbitrary code. This is patched in version 1.7.8.

Vulnerability class: Unrestricted File Upload

Published 2020-04-22 · last modified 2026-06-17.

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

EPSS: 0.019 (78.6th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Alanaktion Phproject — versions < 1.7.8
Phproject

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/Alanaktion/phproject/security/advisories/GHSA-4j97-6w6q-gxjx (Third Party Advisory, Mitigation)
github.com/Alanaktion/phproject/commit/b49d642e035d835f824bd39babd964ec0e3a285f (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2020-11011?: CVE-2020-11011 is a critical-severity vulnerability in Alanaktion Phproject, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.9/10. Published 2020-04-22.
How severe is CVE-2020-11011?: Critical severity. CVSS v3 base score is 9.9 out of 10.