FeedWordPress <= 2026.0517 - Unauthenticated Stored Cross-Site Scripting via Syndicated Feed Content
- ID
- WPSEC-2026-2257
- Plugin
- FeedWordPress (feedwordpress)
- Affected
- all versions before 2026.1016
- Remediation
- Update to 2026.1016 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions Low among sites WPSec scans, 2026-11-03
- Attack surface
- FeedWordPress on WPSec AttackSurface
- Fix released
- Published
Also published later by Wordfence as CVE-2026-110530, on 2026-10-30.
Description
The FeedWordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via syndicated feed item content in all versions up to, and including, 2026.0517, due to the plugin deliberately removing WordPress's kses filters from content_save_pre before saving syndicated posts. As a result, raw feed HTML such as script tags, event handler attributes and javascript: URLs is stored without sanitization. This makes it possible for unauthenticated attackers who control, or can inject content into, a feed the site syndicates (for example a compromised feed or one that republishes user-submitted input) to inject arbitrary web scripts into posts that execute whenever a user, including an administrator, views the affected post.
References
- https://wpsec.com/vuln/WPSEC-2026-2257/
- https://plugins.svn.wordpress.org/feedwordpress/tags/2026.1016/
- https://wordpress.org/plugins/feedwordpress/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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