PT-2025-21777 · WordPress · Echo Rss Feed Post Generator

Friderika Baranyai · Published 2025-05-17 · Updated 2026-04-08 · CVE-2025-4391

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions: The Echo RSS Feed Post Generator plugin for WordPress versions up to, and including, 5.4.8.1

Description: The issue is related to arbitrary file uploads due to missing file type validation in the echo generate featured image() function. This allows unauthenticated attackers to upload arbitrary files on the affected site's server, potentially making remote code execution possible.

Recommendations: For versions up to, and including, 5.4.8.1, consider disabling the echo generate featured image() function until a patch is available to prevent arbitrary file uploads. Restrict access to file upload functionality to minimize the risk of exploitation.

Fix

RCE

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2025-4391

Affected Products

Echo Rss Feed Post Generator

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-4391 · Security Note
• https://twitter.com/CVEnew/status/1923617052998222019 · Twitter Post
• https://codecanyon.net/item/echo-rss-feed-post-generator-plugin-for-wordpress/19486974 · Note
• https://t.me/cvenotify/122749 · Telegram Post
• https://twitter.com/transilienceai/status/1924985196459524305 · Twitter Post
• https://t.me/cvetracker/24087 · Telegram Post
• https://twitter.com/0dayPublishing/status/2041937628937785799 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/72de9f64-f3e0-4705-adc1-6c22076b382f?source=cve · Note
• https://t.me/latest_high_impact_cve/2389 · Telegram Post
• https://twitter.com/cracbot/status/1925507023447134496 · Twitter Post