CVE-2026-93836 json
WPC Product Bundles for WooCommerce <= 8.6.6 - Unauthenticated Stored Cross-Site Scripting via 'qty' Parameter
published 2026-09-22 48 d ago modified 2026-09-22 47 d ago also EUVD-2026-84310
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
The WPC Product Bundles for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'qty' parameter in all versions up to, and including, 8.6.6 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. The float cast used during quantity validation allows a numeric-prefixed payload such as '1<img src=x onerror=...>' to pass validation while retaining its malicious HTML, which is then stored verbatim in order item metadata under the '_woosb_ids' key.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 48 d ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |
Affected products
- wpclever WPC Product Bundles for WooCommerce
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/fc620054-00ed-4c2e-9448-b40ae28efff3?source=cve
- plugins.trac.wordpress.org /browser/woo-product-bundle/tags/8.6.5/includes/class-backend.php#L1949
- plugins.trac.wordpress.org /browser/woo-product-bundle/tags/8.6.5/includes/class-woosb.php#L1197
- plugins.trac.wordpress.org /browser/woo-product-bundle/tags/8.6.5/includes/class-woosb.php#L584
- plugins.trac.wordpress.org /browser/woo-product-bundle/tags/8.6.5/includes/class-woosb.php#L579
- plugins.trac.wordpress.org /changeset?reponame=&old=3702892%40woo-product-bundle&new=3702892%40woo-product-bundle
Sources
- CVE List CVE-2026-93836
- NVD CVE-2026-93836
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.