WP Hallo Welt <= 1.4. - Cross-Site Request Forgery to Stored Cross-Site Scripting
Vulnerability Description
The WP Hallo Welt plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.4. This is due to missing or incorrect nonce validation on the 'hallo_welt_seite' function. This makes it possible for unauthenticated attackers to update plugin settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. Due to the insufficient input sanitization and output escaping, this can lead to Stored Cross-Site Scripting.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- JohSka
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e422aa58-a335-4734-bbcd-d400bd44bc89?source=cve
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L53
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/tags/1.4./hallowelt.php#L53
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L54
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L66
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L15
- https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L27
Affected Vendor
tikolan
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