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Critical

GestSup before 3.2.62 Remote Code Execution via IMAP Attachment

Type: advisorySource: Official CVE List1 source record

GestSup versions before 3.2.62 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 upload/ticket directory and executed when accessed.

Announced Source revision 1
Original source ↗

CVE-2026-100389

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-100389

GestSup

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "GestSup",
    "product": "GestSup",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.2.62",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-100389

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#4177 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement