CVE-2026-102374

GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject...

CVE-2026-102374 GestSup before 3.2.62 Stored XSS via Double-Decoded Email Subject in OAuth IMAP Connector

GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject...

CVE-2026-102374 GestSup before 3.2.62 Stored XSS via Double-Decoded Email Subject in OAuth IMAP Connector

GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject...

EUVD-2026-88598

GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject...

CVE-2026-102374: Improper Neutralization of Input During Web Page Generation

GestSup versions before 3.2.62 contain a stored cross-site scripting vulnerability in the IMAP OAuth connector that double-decodes MIME-encoded email subjects after HTML escaping. Unauthenticated attackers can send crafted emails to monitored mailboxes with nested MIME encoded-words to inject...

PT-2026-102423

Name of the Vulnerable Software and Affected Versions GestSup versions prior to 3.2.62 Description Stored cross-site scripting exists in the IMAP OAuth connector. The issue occurs because MIME-encoded email subjects are double-decoded after HTML escaping. Unauthenticated attackers can send crafte...

CVE-2026-91201: Origin Validation Error

DocsGPT through 0.20.0 posts OAuth connector session tokens to a wildcard target origin in the callback-status endpoint without validating sender origin. Attackers can obtain session tokens and provider account emails by acting as window.opener during OAuth authorization, then use tokens to...