Stored Cross-Site Scripting in Knowledge Base Plugin for WordPress
CVE-2025-5533

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Knowledge Base
Vendor
CVE Published:
6 June 2025

What is CVE-2025-5533?

The Knowledge Base plugin for WordPress contains a vulnerability that allows stored cross-site scripting due to inadequate input sanitization and output escaping in the 'kbalert' shortcode. Authenticated attackers with contributor-level access can exploit this flaw by injecting malicious scripts, which are then executed when users access the compromised pages. This poses a significant risk as it can lead to unauthorized actions and data exposure on the affected WordPress sites.

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Affected Version(s)

Knowledge Base * <= 2.3.0

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

muhammad yudha
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