CVE-2022-4667: RSS Aggregator by Feedzy < 4.1.1 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-01-30 · updated 2026-06-17
Weakness: CWE-79

Description

The RSS Aggregator by Feedzy WordPress plugin before 4.1.1 does not validate and escape some of its block options before outputting them back in the page, which could allow users with a role as low as contributor to perform Stored Cross-Site Scripting attacks which could be used against high privilege users such as admins.

Affected products

themeisle RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator: before 4.1.1 — fixed in 4.1.1

How to fix

Upgrade to a fixed version: themeisle RSS Aggregator by Feedzy – Feed to Post, Autoblogging, News & YouTube Video Feeds Aggregator 4.1.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2022-4667 or the next vulnerability affects your stack