RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.3.3 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Error Message

6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2023-6877
CVSS 6.4 (Medium)
Publicly Published April 6, 2024
Last Updated April 7, 2024
Researcher Colin Xu

Description

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 the plugin's shortcode(s) in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping on the Content-Type field of error messages when retrieving an invalid RSS feed. 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.

Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.

References

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Vulnerability Details for RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator

Software Type Plugin
Software Slug feedzy-rss-feeds (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.3.4, or a newer patched version
Affected Version
  • <= 4.3.3
Patched Version
  • 4.3.4

Recent vulnerabilities in RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator

# Title CVE ID CVSS Researchers Date
1 RSS Aggregator by Feedzy <= 5.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'aspectRatio' Attribute CVE-2026-13252 6.4 PRISM July 1, 2026
2 RSS Aggregator by Feedzy <= 5.1.7 - Missing Authorization to Authenticated (Contributor+) Import Job Creation, Execution, Purge, Log Clearing, and Information Disclosure via Multiple AJAX Sub-Actions CVE-2026-8976 4.3 Jack Pas (Dark.) June 5, 2026
3 RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 5.1.1 - Unauthenticated Blind Server-Side Request Forgery CVE-2025-11467 5.8 Lucas Montes (NiRoX) December 10, 2025
4 Feedzy RSS Feeds Lite <= 5.1.0 - Authenticated (Subscriber+) Server-Side Request Forgery CVE-2025-11128 5.0 Lucas Montes (NiRoX) October 22, 2025
5 RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.4.7 - Authenticated(Contributor+) Blind Server-Side Request Forgery (SSRF) CVE-2023-6805 6.4 Colin Xu April 16, 2024
6 RSS Aggregator by Feedzy <= 4.4.2 - Missing Authorization to Arbitrary Page Creation and Publication CVE-2024-1318 6.5 Lucio Sá February 9, 2024
7 RSS Aggregator by Feedzy <= 4.4.2 - Authenticated(Contributor+) SQL Injection CVE-2024-1317 8.8 Lucio Sá February 9, 2024
8 RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.4.1 - Missing Authorization CVE-2024-1092 4.3 Muhammad Daffa February 2, 2024
9 ThemeIsle SDK <= Various Versions - Missing Authorization CVE-2024-1047 5.3 Francesco Carlucci February 1, 2024
10 RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator <= 4.3.2 - Missing Authorization CVE-2023-6798 5.4 Colin Xu January 5, 2024

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