Description

The Echo RSS Feed Post Generator plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the echo_generate_featured_image() function in all versions up to, and including, 5.4.8.1. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Classification

CVE ID: CVE-2025-4391

CVSS Base Severity: CRITICAL

CVSS Base Score: 9.8

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor: CodeRevolution

Product: Echo RSS Feed Post Generator

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.2% (probability of being exploited)

EPSS Percentile: 42.26% (scored less or equal to compared to others)

EPSS Date: 2025-06-06 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-4391
https://www.wordfence.com/threat-intel/vulnerabilities/id/72de9f64-f3e0-4705-adc1-6c22076b382f?source=cve
https://codecanyon.net/item/echo-rss-feed-post-generator-plugin-for-wordpress/19486974

Timeline