What is CVE-2026-33687?

CVE-2026-33687 is a high-severity vulnerability in Code16 Sharp, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-03-26.

How severe is CVE-2026-33687?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Code16 Sharp

CVE-2026-33687

Sharp is a content management framework built for Laravel as a package. Versions prior to 9.20.0 contain a vulnerability in the file upload endpoint that allows authenticated users to bypass all file type restrictions. The upload endpoint…

Vulnerability class: Unrestricted File Upload

EPSS: 0.000 (6.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Code16 Sharp — versions < 9.20.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

https://github.com/code16/sharp/security/advisories/GHSA-fr76-5637-w3g9 (x_refsource_CONFIRM)
https://github.com/code16/sharp/pull/714 (x_refsource_MISC)
https://github.com/code16/sharp/releases/tag/v9.20.0 (x_refsource_MISC)
https://laravel.com/docs/13.x/filesystem (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-33687?: CVE-2026-33687 is a high-severity vulnerability in Code16 Sharp, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-03-26.
How severe is CVE-2026-33687?: High severity. CVSS v3 base score is 8.8 out of 10.