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VulnerabilityPublished

CVE-2026-82849: Masteriyo LMS (WordPress plugin) · Insecure Direct Object Reference

Affects Masteriyo LMS (WordPress plugin)Source CVE Database V5

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Not known to be exploited · CVSS 4.3 Medium : upgrade to 3.4.2 when convenient.

Data as of 8 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 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.4.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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 9 Nov 2026.

What to do

Upgrade Masteriyo LMS (WordPress plugin) to 3.4.2.

Affected software

ProductAffectedFixed in
Masteriyo LMSAffected
  • <3.4.2
Fixed in
  • 3.4.2

AI-suggested

Upgrade Masteriyo LMS to version 3.4.2 or later, where this authorization bypass vulnerability has been fixed. No other mitigation is indicated.

Description

The Masteriyo LMS WordPress plugin before 3.4.2 does not verify that the user making the request owns the course-progress records being returned, allowing any authenticated user, such as a self-registered subscriber, to read another user's learning activity. The ownership check it applies is skipped whenever the requested account is not named with a non-zero value, in which case the records of every learner on the site are returned at once.

References

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