What’s Vulnerable › Vulnerabilities

CVE-2025-13365: WP Hallo Welt <= 1.4. - Cross-Site Request Forgery to Stored Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-20 · updated 2026-06-17
• Weakness: CWE-352

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.

Affected products

• tikolan WP Hallo Welt: through 1.4.

References

• 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#L15
• https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/hallowelt.php#L27
• https://plugins.trac.wordpress.org/browser/wp-hallo-welt/trunk/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://www.wordfence.com/threat-intel/vulnerabilities/id/e422aa58-a335-4734-bbcd-d400bd44bc89?source=cve

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