Description
The FundEngine – Donation and Crowdfunding Platform plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wfp_featured_video_url' parameter in all versions up to, and including, 1.8.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The REST endpoint used to submit the video URL has its permission_callback set to __return_true, meaning any authenticated user — including those with Subscriber-level access — can reach the vulnerable code path.
References6
- plugins.trac.wordpress.org/browser/wp-fundraising-donation/tags…
- plugins.trac.wordpress.org/browser/wp-fundraising-donation/tags…
- plugins.trac.wordpress.org/browser/wp-fundraising-donation/tags…
- plugins.trac.wordpress.org/browser/wp-fundraising-donation/tags…
- plugins.trac.wordpress.org/changeset?reponame=&old=3656562%40wp…
- www.wordfence.com/threat-intel/vulnerabilities/id/9cf1230e-759e…
Metrics
- CVSS 3.1
-
6.4
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 29 · as of 9 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.