CVE-2026-81342: unknown masterstudy lms wordpress plugin Open Redirect
CVSS: 7.2v3.1HighDeferred
Published 29-08-2026Last modified 30-08-2026
Vulnerability summary
CVE-2026-81342 is a high (CVSS 7.2) Open Redirect vulnerability in unknown masterstudy lms wordpress plugin. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.1% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 3.7.43.
CVSS score
7.2/10
010
High · v3.1 (wordfence)EPSS score
0.29%
0%100%
Low · +0.12 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 29-08-2026PublishedVulnerability first disclosed.
- 30-08-2026Last modifiedVulnerability information updated.
Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.43 does not validate a redirect parameter supplied during user registration before using it, allowing unauthenticated attackers to redirect users to arbitrary external URLs.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.2Preferred score · wordfence (Source)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NSources3 sources · 4.7–7.2
- CVE.orgCNA4.7MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:NDiffers
- NVDNIST4.7MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:NDiffers
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
+0.12 pp
From 0.17% on 18-09-2026
18-09-202618-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Unknown1 product
- masterstudy lms wordpress plugin< 3.7.43
Wordpress1 product
- masterstudy-lms-learning-management-system< 3.7.43
2 vendors · 2 products