Is there a public exploit for CVE-2026-103688?

Yes. Proof-of-concept code for CVE-2026-103688 has been published publicly.

Is there a proof of concept for CVE-2026-103688?

Yes — 1 proof-of-concept entry is linked on this page, from public repositories and community submissions. They are listed for authorised testing only.

How severe is CVE-2026-103688?

CVE-2026-103688 scores CVSS 9.8 (v3.1), rated critical.

9.8 Critical

The Checkout Files Upload for WooCommerce WordPress plugin before 2.4.0 does not validate uploaded file types when its accepted file types…

CVE-2026-103688

The Checkout Files Upload for WooCommerce WordPress plugin before 2.4.0 does not validate uploaded file types when its accepted file types setting is left empty, which it documents as the way to accept all files, allowing unauthenticated users to upload arbitrary files, including PHP files that lead to remote code execution on servers that execute PHP from the uploads directory.

Proof-of-concept code is published

Public PoC

Public PoCnoxcrypt-x/CVE-2026-1036883 stars

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS: 9.8 (v3.1)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Public PoC
Published: 28 October 2026
Last updated: 28 October 2026
Weakness: CWE-434
Assigner: contact@wpscan.com

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

At the source

References

https://wpscan.com/vulnerability/08777aa1-6308-4e99-b2d0-5e43209aa6a6/

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

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Before you submit * This vulnerability is already publicly disclosed (it has a published CVE). This material comes only from testing I was authorised to perform. I have the legal right to publish this content and am not breaching any agreement by doing so. It contains no live credentials, personal data, or anything targeting systems I am not authorised to test. I understand it will be reviewed before it appears publicly and may be rejected. I agree to the submission terms.

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Query this programmatically

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