VULNERABILITY INTELLIGENCE
CVE-2026-8406
CVSS score7.1 HIGH
EPSS probability0.30%
CISA KEVNot currently listed
Published2026-06-11
Last modified2026-10-26
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
openSIS Classic 9.3 contains an insecure direct object reference vulnerability in the messaging module. Any authenticated user with access to the messaging module can request sent-message details from modules/messaging/SentMail.php by supplying an arbitrary mail_id value.
Weakness classification
- CWE-639: Authorization Bypass Through User-Controlled Key