Quick answers
- Is CVE-2026-88846 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-88846 being exploited in the wild.
- How severe is CVE-2026-88846?
- Medium severity, with a CVSS score of 5.3, published 24 September 2026.
- Which products and versions are affected?
- MasterStudy LMS 2.3.0 through 3.7.49.
- Is there a fix for CVE-2026-88846?
- A patch was published on 2026-09-24: Fixed in version 3.7.50 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-88846 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-88846?
- Check whether you run MasterStudy 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 lacks authorization checks in its front-end registration flow to respect the site's user registration setting (CWE-862: Missing Authorization). An unauthenticated attacker with network access can bypass the registration restriction by submitting account creation requests directly through the plugin's forms, resulting in account creation and automatic login. A fix is available in version 3.7.50 and later.
Affected products
- MasterStudy MasterStudy LMS 2.3.0 through 3.7.49
Timeline
- 2026-09-22: disclosed
- 2026-09-24: patched: Fixed in version 3.7.50