CVE-2026-118090High· 8.8▾ TwilightSubscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
masterstudy-lms-learning-management-system >= n/a <= 3.7.55Update to 3.7.56 or a higher version.
Connected by shared product, vendor, weakness, or advisory.
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