Medium severity6.1NVD Advisory· Published Sep 26, 2026· Updated Sep 26, 2026
CVE-2026-100523
CVE-2026-100523
Description
Cotonti through 1.0.0 contains an open redirect vulnerability in message.php that base64-decodes the redirect parameter without domain validation. Unauthenticated attackers can craft malicious links with encoded external URLs to redirect users to arbitrary sites via meta refresh tags for phishing attacks.
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Affected products
1Patches
Vulnerability mechanics
References
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