What is CVE-2023-5227?

CVE-2023-5227 is a critical-severity vulnerability in Phpmyfaq, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-09-30.

How severe is CVE-2023-5227?

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

Is CVE-2023-5227 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Phpmyfaq

CVE-2023-5227

Unrestricted Upload of File with Dangerous Type in GitHub repository thorsten/phpmyfaq prior to 3.1.8.

Vulnerability class: Unrestricted File Upload

Published 2023-09-30 · last modified 2026-06-17.

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 (41.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.8% 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

Phpmyfaq
Thorsten Thorsten/phpmyfaq — versions unspecified

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

huntr.dev/bounties/a335c013-db75-4120-872c-42059c7100e8 (Permissions Required)
github.com/thorsten/phpmyfaq/commit/abf52487422ce47195c8a80bd904a7af39f60297 (Patch)

Frequently asked questions

What is CVE-2023-5227?: CVE-2023-5227 is a critical-severity vulnerability in Phpmyfaq, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2023-09-30.
How severe is CVE-2023-5227?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-5227 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.