CVE Catalog

CVE-2026-112784

MediumCVSS 4.3
Published: Updated: Translated: NVD NIST

Summary

OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/testEmailSettings.php that allows any authenticated user to send mail through the configured SMTP relay. Read-level users can supply testEmailAddress and fromAddress parameters to send the fixed test message to any recipient with a spoofed From address.

Risk Assessment

An attacker can abuse the organization's mail server to send messages with a spoofed sender, potentially enabling phishing and reputational damage.

Recommendation

Upgrade OpenCATS to version 0.10.0 or later. Until then, restrict access to the test endpoint and enforce authorization server-side.

Other vulnerabilities in OpenCATS

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Original NVD description (English source)

OpenCATS before 0.10.0 contains a missing authorization vulnerability in ajax/testEmailSettings.php that allows any authenticated user to send mail through the configured SMTP relay. Read-level users can supply testEmailAddress and fromAddress parameters to send the fixed test message to any recipient with a spoofed From address.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS