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.
History

Thu, 11 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 11 Jun 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title openSIS Classic 9.3 - Insecure Direct Object Reference in Sent Mail
First Time appeared Os4ed
Os4ed opensis-classic
Weaknesses CWE-639
CPEs cpe:2.3:a:os4ed:opensis-classic:9.3:*:linux:*:*:*:*:*
cpe:2.3:a:os4ed:opensis-classic:9.3:*:macos:*:*:*:*:*
cpe:2.3:a:os4ed:opensis-classic:9.3:*:windows:*:*:*:*:*
Vendors & Products Os4ed
Os4ed opensis-classic
References
Metrics cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Fluid Attacks

Published:

Updated: 2026-06-11T14:28:42.669Z

Reserved: 2026-05-12T15:47:59.042Z

Link: CVE-2026-8406

cve-icon Vulnrichment

Updated: 2026-06-11T14:28:21.203Z

cve-icon NVD

Status : Deferred

Published: 2026-06-11T14:16:32.930

Modified: 2026-06-11T15:28:44.720

Link: CVE-2026-8406

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.