CVE-2026-40766: stylemixthemes masterstudy_lms SQL Injection
CVSS: 8.5v3.1HighDeferred
Published 15-06-2026Last modified 16-06-2026
Vulnerability summary
CVE-2026-40766 is a high (CVSS 8.5) SQL Injection vulnerability in stylemixthemes masterstudy_lms. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28% of scored vulnerabilities.
CVSS score
8.5/10
010
High · v3.1 (CVE.org)EPSS score
0.36%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 15-06-2026PublishedVulnerability first disclosed.
- 16-06-2026Last modifiedVulnerability information updated.
Description
Subscriber SQL Injection in MasterStudy LMS <= 3.7.25 versions.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:LSources3 sources · 6.5–8.5
- NVDNIST8.5HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
- wordfenceSource6.5MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
+0.02 pp
From 0.33% on 20-09-2026
20-09-202620-10-2026
EPSS score0.36%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Stylemixthemes1 product
- masterstudy_lms≥ n/a, ≤ 3.7.25
Wordpress1 product
- masterstudy-lms-learning-management-system≤ 3.7.25 (fixed in 3.7.26)
2 vendors · 2 products
References
2 links- patchstack.com/database/…VDB Entry