CVE-2026-118090
WordPress MasterStudy LMS plugin <= 3.7.55 - PHP Object Injection vulnerability
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
WordPress MasterStudy LMS plugin <= 3.7.55 - PHP Object Injection vulnerability
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
- Record
CVE-2026-118090- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-114316
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
- Record
EUVD-2026-114316- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rm8v-6xph-365g
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
- Record
GHSA-rm8v-6xph-365g- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
Subscriber PHP Object Injection in MasterStudy LMS <= 3.7.55 versions.
- Record
CVE-2026-118090- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-118090 is a high vulnerability (CVSS 8.8) in Stylemix Masterstudy Lms, published October 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. No source names a fixed version.