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VulnerabilityPublished

CVE-2026-88847: MasterStudy LMS WordPress Plugin · Missing Authorization

Affects MasterStudy LMS WordPress PluginSource CVE Database V5

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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

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
MasterStudy LMS WordPress PluginAffected
  • <3.7.50
Fixed in
  • 3.7.50

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.

References

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