CVE-2026-84908 json
WPFunnels <= 3.12.13 - Missing Authorization to Unauthenticated Arbitrary Product Price Manipulation via 'wpfnl_load_payment' AJAX Action
published 2026-09-09 2 mo ago modified 2026-09-09 2 mo ago also EUVD-2026-74687
- cvss
- 5.3
- 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 36%
- public exploits
- 0
- none known
Summary
The WPFunnels plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.12.13. This is due to the plugin registering the 'wpfnl_load_payment' AJAX action for both authenticated and unauthenticated (wp_ajax_nopriv_) users and the underlying add_offer_product_to_cart() function performing no nonce verification, no capability check, and no validation that the attacker-supplied product_id is the offer product actually configured on the attacker-supplied step_id. This makes it possible for unauthenticated attackers to add arbitrary WooCommerce products to a cart at any discounted price configured on any funnel step, enabling price manipulation and revenue loss at checkout.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected products
- getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/5a24d442-56f9-4f6d-bff6-0eb354249895?source=cve
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L166
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L166
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L71
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.13/includes/core/offer/class-wpfnl-offer.php#L213
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L71
- plugins.trac.wordpress.org /browser/wpfunnels/tags/3.12.12/includes/core/offer/class-wpfnl-offer.php#L213
- plugins.trac.wordpress.org /changeset?reponame=&old=3675200%40wpfunnels&new=3675200%40wpfunnels
Sources
- CVE List CVE-2026-84908
- NVD CVE-2026-84908
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.