CVE-2026-2433

Published: Mar 07, 2026 Last Modified: Mar 09, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none

Description

AI Translation Available

The RSS Aggregator – RSS Import, News Feeds, Feed to Post, and Autoblogging plugin for WordPress is vulnerable to DOM-Based Cross-Site Scripting via postMessage in all versions up to, and including, 5.0.11. This is due to the plugin's admin-shell.js registering a global message event listener without origin validation (missing event.origin check) and directly passing user-controlled URLs to window.open() without URL scheme validation. This makes it possible for unauthenticated attackers to execute arbitrary JavaScript in the context of an authenticated administrator's session by tricking them into visiting a malicious website that sends crafted postMessage payloads to the plugin's admin page.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 9 Days)

79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Integrity Availability
Potential Impacts:
Bypass Protection Mechanism Read Application Data Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies: AI/ML, Web Based, Web Server
Likelihood of Exploit: High
View CWE Details
https://plugins.trac.wordpress.org/browser/wp-rss-aggregato…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/tags/5.0.10/core/j…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregato…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/tags/5.0.10/core/j…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregato…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/trunk/core/js/admi…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregato…
https://plugins.trac.wordpress.org/browser/wp-rss-aggregator/trunk/core/js/admi…
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfp…
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&ne…
https://www.wordfence.com/threat-intel/vulnerabilities/id/3…
https://www.wordfence.com/threat-intel/vulnerabilities/id/311960e7-c4b4-4638-98…