Vendor
3 published CVES affecting sendio, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
Newest publication first
Sendio versions before 8.2.1 were affected by a Local File Inclusion vulnerability that allowed an unauthenticated, remote attacker to read potentially sensitive system files via a specially crafted URL.
The Web interface in Sendio before 7.2.4 does not properly handle sessions, which allows remote authenticated users to obtain sensitive information from other users' sessions via a large number of requests.
Sendio before 7.2.4 includes the session identifier in URLs in emails, which allows remote attackers to obtain sensitive information and hijack sessions by reading the jsessionid parameter in the Referrer HTTP header.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.