CVE-2026-97660 Cross-site scripting in WPC Product Options for WooCommerce
Unauthenticated attackers can inject arbitrary scripts via multipart field names in guest checkout, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-97660?
CVE-2026-97660 is a high-severity cross-site scripting vulnerability in wpclever WPC Product Options for WooCommerce, published on 3 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WPC Product Options for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This is exploitable via guest checkout without authentication because the malicious payload is embedded in a multipart Content-Disposition field name beginning with 'wpcpo-', which PHP's RFC1867 parser preserves byte-for-byte and stores into order item meta.
Weakness: CWE-79
Which versions are affected by CVE-2026-97660?
How do I fix CVE-2026-97660?
No fix has been published for CVE-2026-97660 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-97660 being exploited?
There is no known exploitation of CVE-2026-97660 in the wild and no public exploit code.
Sources
Also known as GHSA-vgp2-j64f-vf93.