CVE-2026-104735
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk11th percentile - higher than 11% of all known CVEs
Summary
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Feedzy Loop Block Feed URL / RSS <title> in all versions up to and including 5.2.10 due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts that execute whenever a user accesses an injected page. The payload is not neutralized at save time because post_content stores only a benign block reference to an external feed URL; the malicious HTML is injected at render time from the attacker-controlled RSS feed title, bypassing any save-time wp_kses filtering.
Risk Assessment
The risk includes the possibility of injecting malicious scripts on pages with Feedzy blocks, which could lead to data theft, session hijacking, or malware distribution. The attack can affect all visitors to pages with infected feed blocks.
Recommendation
Update the RSS Aggregator by Feedzy plugin to the latest patched version. Also restrict contributor and higher privileges and regularly audit user-published content.
Other vulnerabilities in RSS Aggregator by Feedzy
See all- CVE-2026-18934Medium
The RSS Aggregator by Feedzy plugin before version 5.2.6 does not verify that the requesting user owns or is allowed to edit the import job named in the request, allowing users with author-level access and above to permanently delete the posts created by another user's import job, reset its deduplication and scheduling state, disable it, or clear its error log. One of the affected actions performs no object-type check either, so arbitrary posts and pages can also be unpublished regardless of who owns them.
- CVE-2026-13252Medium
The RSS Aggregator by Feedzy plugin for WordPress up to version 5.2.1 is vulnerable to stored XSS via the 'aspectRatio' attribute due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or higher can inject arbitrary scripts that execute when users access affected pages.
- CVE-2026-8976Medium
The RSS Aggregator by Feedzy plugin for WordPress up to version 5.1.7 contains an authorization bypass vulnerability. Lack of permission verification allows users with Contributor access and above to create and execute RSS import jobs, delete posts, clear error logs, and enumerate taxonomy terms and meta keys. The nonce is leaked in the feedzyjs script.
- CVE-2025-11467Medium
The RSS Aggregator by Feedzy plugin for WordPress (versions up to and including 5.1.1) is vulnerable to Blind Server-Side Request Forgery via the feedzy_lazy_load function. Unauthenticated attackers can force the application to make HTTP requests to arbitrary locations, including internal services.
- CVE-2025-11128Medium
The RSS Aggregator by Feedzy plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.1.0 via the 'feedzy_sanitize_feeds' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query information from internal services.
Original NVD description (English source)
The RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Feedzy Loop Block Feed URL / RSS <title> in all versions up to, and including, 5.2.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is not neutralized at save time because post_content stores only a benign block reference to an external feed URL; the malicious HTML is injected at render time from the attacker-controlled RSS feed title, bypassing any save-time wp_kses filtering.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS