CVE-2026-97660
WPC Product Options for WooCommerce <= 4.0.5 - Unauthenticated Stored Cross-Site Scripting via wpcpo-* Array Key via Multipart Field Name
- 7.2HighCVSS base score
- 0.29%Exploitation in 30 daysEPSS · top 78% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Wordfence
- 9 days later
· 9 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.29% · top 78% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
wpclever · WPC Product Options for WooCommerce
- affected ≤ 4.0.5
References
References7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/13a52c43-c14c-4322-9191-297e6c647d92?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L579 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L792 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L336 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L537 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/wpc-product-options/tags/4.0.5/includes/class-cart.php#L573 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3712354%40wpc-product-options&new=3712354%40wpc-product-options (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-91952 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97660)Record last updated .