CVE-2026-100389

Published 25 September 2026 · tracked since 26 September 2026

Description

GestSup versions before 3.2.61 contain a remote code execution vulnerability in the basic IMAP connector's attachment handling that fails to skip blocked file extensions. Unauthenticated attackers can send emails with PHP attachments to monitored mailboxes, which are written to the web-accessible up

References

• NVD — National Vulnerability Database
• CVE.org record (MITRE)
• CISA Known Exploited Vulnerabilities catalog

Latest tracked vulnerabilities

• CVE-2026-100876 MEDIUM 6.3
• CVE-2026-100875 HIGH 7.3
• CVE-2026-100873 MEDIUM 4.3
• CVE-2026-100874 HIGH 7.3
• CVE-2026-101060 HIGH 8.2
• CVE-2026-101061 MEDIUM 4.7
• CVE-2026-101047 MEDIUM 5.3
• CVE-2026-101057 LOW 3.1
• CVE-2026-101058 MEDIUM 6.9
• CVE-2026-101044 HIGH 7.1

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