CVE-2026-88847: MasterStudy LMS WordPress Plugin · Missing Authorization
Affects MasterStudy LMS WordPress PluginSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 3.7.50 when convenient.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 3.7.50
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.
What to do
Upgrade MasterStudy LMS WordPress Plugin to 3.7.50.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| MasterStudy LMS WordPress Plugin | Affected
| Fixed in
|
AI-suggested
Upgrade the MasterStudy LMS WordPress Plugin to version 3.7.50 or later, where this authorization check vulnerability has been fixed. No other mitigation is required if the plugin is updated.
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that a user is enrolled in a course before recording lesson completions against it, allowing any authenticated user, such as a subscriber, to create course progress records for courses they have no access to.