CVE-2026-15103
HIGHCVSS v3
8.8
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
The WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell plugin for WordPress is vulnerable to Privilege Escalation via arbitrary option update in all versions up to, and including, 3.12.8. This is due to the `update_settings()` REST callback failing to validate the `group_id` path parameter against an allowlist of permitted option names before passing it directly to `get_option()` and `update_option()`, allowing the built-in `wp_user_roles` option — which satisfies the ro
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 7/16/2026
- Last Modified
- 7/16/2026
Frequently Asked Questions
What is CVE-2026-15103?
The WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell plugin for WordPress is vulnerable to Privilege Escalation via arbitrary option update in all versions up to, and including, 3.12.8. This is due to the `update_settings()` REST callback failing to validate the `group_id` path parameter against an allowlist of permitted option names before passing it directly to `get_option()` and `update_option()`, allowing the built-in `wp_user_roles` option — which satisfies the ro
Is CVE-2026-15103 actively exploited?
Active exploitation of CVE-2026-15103 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-15103?
CVE-2026-15103 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string 3.1.
Is CVE-2026-15103 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.