Medium severity · published Sep 24, 2026
CVE-2026-88846
MasterStudy LMS 2.3.0 - < 3.7.50 - Unauthenticated Account Creation with Registration Disabled
5.3
CVSS
0.2%
EPSS
No
On KEV
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not check whether user registration is enabled on the site before creating an account through one of its front-end registration flows, allowing unauthenticated users to create accounts, and be logged into them, on sites where registration has been deliberately disabled.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ML
MasterStudy LMS WordPress Plugin ·
2.3.0 before 3.7.50 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-88846
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-88846
wpscan.com
https://wpscan.com/vulnerability/57b0dd3f-bd83-4fb7-b98d-c999026910cd/
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