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VulnerabilityPublished

CVE-2026-82850: Masteriyo LMS (WordPress plugin) · Information Exposure

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 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 6% 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 8 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 vulnerability is fixed. No other mitigation is necessary once the plugin is updated.

Description

The Masteriyo LMS WordPress plugin before 3.4.2 does not restrict access to quiz answer keys, allowing any authenticated user, such as a student, to retrieve the correct answers for any quiz on the site, including quizzes in courses they are not enrolled in. The redaction that hides them is applied only to a fixed list of question types, so the answers to every other type are returned in full to anyone able to view the questions.

References

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