Vulnerability in Tutor Lms

CVE-2026-12273

The Tutor LMS WordPress plugin before 3.9.13 does not perform any authorization or post-target validation before creating a comment in one of its handlers, and stores the comment pre-approved, allowing authenticated users with subscriber-level access and above to post auto-approved comments containing arbitrary HTML and links on any content across the site, bypassing the comment moderation queue.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (19.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-12273: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Tutor Lms — versions 0

References

Frequently asked questions

What is CVE-2026-12273?
CVE-2026-12273 is a medium-severity vulnerability in Tutor Lms, classified under CWE-284 IMPROPER ACCESS CONTROL. CVSS score: 4.3/10. Published 2026-07-13.
How severe is CVE-2026-12273?
Medium severity. CVSS v3 base score is 4.3 out of 10.