CVE-2025-30556 Overview
CVE-2025-30556 is a Cross-Site Request Forgery (CSRF) vulnerability affecting the flyaga Fix Rss Feeds WordPress plugin. The flaw impacts all plugin versions from unspecified initial releases through version 3.1. An attacker can trick an authenticated user into performing unintended state-changing actions by visiting an attacker-controlled page. The weakness is classified under CWE-352 and requires user interaction to succeed.
Critical Impact
Successful exploitation allows attackers to abuse authenticated user sessions to trigger plugin actions without consent, resulting in limited integrity impact on the affected WordPress site.
Affected Products
- flyaga Fix Rss Feeds plugin for WordPress
- All versions up to and including 3.1
- WordPress installations with the fix-rss-feed plugin enabled
Discovery Timeline
- 2025-03-24 - CVE-2025-30556 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-30556
Vulnerability Analysis
The Fix Rss Feeds plugin lacks adequate anti-CSRF protections on one or more state-changing endpoints. WordPress plugins are expected to validate requests using nonces generated via wp_create_nonce() and verified with check_admin_referer() or wp_verify_nonce(). When these checks are missing or improperly implemented, a browser will submit an authenticated request based purely on session cookies. This enables an external site to forge requests that the target server accepts as legitimate.
The attack scope is limited to the affected user's privileges. Because exploitation depends on user interaction, an attacker must lure a logged-in administrator or privileged user to a malicious page or link.
Root Cause
The root cause is missing or insufficient CSRF token validation on plugin request handlers. The plugin does not verify that incoming requests originated from an authorized workflow within the WordPress admin interface. Without this validation, forged cross-origin requests inherit the user's authentication context and execute successfully.
Attack Vector
An attacker crafts a malicious HTML page containing a hidden form or image tag that targets a vulnerable plugin endpoint. The attacker delivers the page through phishing, forum posts, or comment injection. When an authenticated WordPress user with the plugin installed loads the malicious page, the browser automatically submits the forged request with valid session cookies. The plugin processes the request as if the user had initiated it. See the Patchstack Vulnerability Report for further technical context.
Detection Methods for CVE-2025-30556
Indicators of Compromise
- Unexpected changes to Fix Rss Feeds plugin configuration or settings
- HTTP POST requests to fix-rss-feed plugin endpoints with Referer headers pointing to external domains
- Requests missing the _wpnonce parameter on plugin admin actions
- Sudden configuration modifications correlated with administrator browsing activity
Detection Strategies
- Inspect web server logs for cross-origin POST requests to WordPress admin URLs containing fix-rss-feed paths.
- Correlate plugin setting changes with the referring URL and user-agent to identify suspicious origins.
- Alert on WordPress admin actions lacking a valid nonce parameter or with an anomalous Referer header.
Monitoring Recommendations
- Enable WordPress activity logging to record plugin configuration changes with source IP and referrer metadata.
- Deploy a Web Application Firewall (WAF) rule set to flag requests missing CSRF tokens on plugin admin endpoints.
- Review authenticated administrator sessions for unusual timing between login and plugin state changes.
How to Mitigate CVE-2025-30556
Immediate Actions Required
- Deactivate the Fix Rss Feeds plugin until a patched version is available.
- Audit WordPress user accounts and revoke unnecessary administrator privileges.
- Force re-authentication for privileged users by invalidating active sessions.
Patch Information
At the time of publication, no fixed version is identified in the advisory. The vulnerability affects all versions through 3.1. Administrators should monitor the Patchstack Vulnerability Report and the plugin's WordPress.org page for a patched release.
Workarounds
- Remove or disable the fix-rss-feed plugin from all WordPress installations.
- Configure a WAF to block requests to plugin admin endpoints that lack a valid _wpnonce parameter.
- Restrict administrative access to WordPress via IP allow-listing where feasible.
- Instruct privileged users to log out of WordPress sessions before browsing untrusted sites.
# Configuration example: disable the plugin via WP-CLI
wp plugin deactivate fix-rss-feed
wp plugin delete fix-rss-feed
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
