Threats Tagged 'cve-2026-103647'
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Threats Tagged 'cve-2026-103647'
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CVE-2026-103647 is a high-severity cross-site scripting (XSS) vulnerability in the webmail component of Progressive Robot Ltd's hMailServer versions 6.3.2 through 6.3.5. It allows a remote attacker who can send an encrypted message to execute script in the webmail's origin using the victim's session. The vulnerability arises when decrypted S/MIME or OpenPGP message attachments declared as text/html are opened in a new tab, enabling script execution with access to mailbox data and REST API functions. The REST API is not enabled by default, limiting exposure. Join the discussion | CVE Database V5 | 10/08/2026, 10:53:05 UTC Added: 10/08/2026, 11:04:03 UTC |
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