Quick answers
- Is CVE-2026-82850 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-82850 being exploited in the wild.
- How severe is CVE-2026-82850?
- Medium severity, with a CVSS score of 4.3, published 24 September 2026.
- Which products and versions are affected?
- Masteriyo LMS before 3.4.2.
- Is there a fix for CVE-2026-82850?
- A patch was published on 2026-09-22: Fixed in version 3.4.2 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-82850 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-82850?
- Check whether you run Masteriyo LMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The plugin does not properly enforce authorization checks on quiz answer key endpoints, allowing authenticated users to retrieve answers regardless of course enrollment status. The vulnerability affects all question types except for a hardcoded whitelist; answers to unsupported types are returned unredacted. An authenticated attacker can access this information via direct API or endpoint requests with minimal preconditions.
Affected products
- Masteriyo Masteriyo LMS before 3.4.2
Timeline
- 2026-09-22: disclosed: Publicly published
- 2026-09-22: patched: Fixed in version 3.4.2