CVE-2026-2121
MEDIUM
4,4
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: high
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
Description
AI Translation Available
The Weaver Show Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'add_class' parameter in all versions up to, and including, 1.8.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This primarily affects multisite installations where Administrators do not have the unfiltered_html capability.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon 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
https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts…
https://plugins.trac.wordpress.org/browser/show-posts/tags/1.8.1/includes/posts…
https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widg…
https://plugins.trac.wordpress.org/browser/show-posts/trunk/includes/posts-widg…
https://www.wordfence.com/threat-intel/vulnerabilities/id/e0d525ab-a86d-4750-9d…
https://youtu.be/kbSqUuEAyho