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CVE-2026-8406

openSIS Classic 9.3 - Insecure Direct Object Reference in Sent Mail

CVSS 7.1 HIGHEPSS 0.2%CWE-639
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.
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
Produtos afetados
OS4ED · openSIS-Classic

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Referências
https://fluidattacks.com/es/advisories/melaniehttps://github.com/OS4ED/openSIS-Classichttps://github.com/OS4ED/openSIS-Classic/commit/c45d43146167324bae06bdf09de3e4bd2e5e478f