CVE-2026-89081— Tutor LMS <= 4.0.8 - Reflected Cross-Site Scripting via 'back_url' and 'search' Parameters
Quick assessment
Affected
themeum Tutor LMS – eLearning and online course solution
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Tutor LMS 这款用于 WordPress 的 eLearning 和在线课程解决方案插件，由于输入净化不足和输出转义缺失，在所有版本（包括 4.0.8 及之前版本）中，通过 参数存在反射型跨站脚本攻击（Reflected Cross-Site Scripting, XSS）漏洞。这使得未经身份验证的攻击者能够诱导用户执行某些操作（例如点击某个链接），从而在会执行该操作的页面中注入任意 Web 脚本。
Possible ATT&CK Techniques 1 AI
T1059.007 · JavaScript
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-89081
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Tutor LMS <= 4.0.8 - Reflected Cross-Site Scripting via 'back_url' and 'search' Parameters
Source: CVE Program / CVE List V5
Vulnerability Description
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'search' parameter in all versions up to, and including, 4.0.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| themeum | Tutor LMS – eLearning and online course solution | 0 ~ 4.0.8 | - |
|
II. Public POCs for CVE-2026-89081
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-89081
请登录查看更多情报信息。
Other References for CVE-2026-89081 (6)
Same Patch Batch · themeum · 2026-09-19 · 3 CVEs total
| CVE-2026-89333 | 6.5 MEDIUM | Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensi |
| CVE-2026-88944 | 4.3 MEDIUM | Tutor LMS <= 4.0.8 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post D |
IV. Related Vulnerabilities
Same product: Tutor LMS – eLearning and online course solution
-
CVE-2026-88944
Tutor LMS <= 4.0.8 - Missing Authorization to Authenticated -
CVE-2026-89333
Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Aut -
CVE-2026-78175
Tutor LMS <= 4.0.7 - Authenticated (Subscriber+) PHP Object -
CVE-2026-16759
Tutor LMS <= 4.0.5 - Unauthenticated Remote Code Execution v -
CVE-2026-15444
Tutor LMS <= 4.0.1 - Authenticated (Administrator+) SQL Inje
Same vendor: themeum
-
CVE-2026-88944
Tutor LMS <= 4.0.8 - Missing Authorization to Authenticated -
CVE-2026-89333
Tutor LMS <= 4.0.8 - Insecure Direct Object Reference to Aut -
CVE-2026-92465
WordPress WP Mega Menu plugin <= 1.4.2 - SQL Injection vulne -
CVE-2026-78175
Tutor LMS <= 4.0.7 - Authenticated (Subscriber+) PHP Object -
CVE-2026-17037
Kirki <= 6.2.0 - Unauthenticated Stored Cross-Site Scripting
Same weakness: CWE-79
-
CVE-2026-12042
WP2Social Auto Publish <= 2.4.12 - Authenticated (Administra -
CVE-2026-92967
Pochipp <= 1.20.2 - Reflected Cross-Site Scripting via 'keyw -
CVE-2026-13354
Asset CleanUp: Page Speed Booster <= 1.4.0.5 - Unauthenticat -
CVE-2026-77820
WPComplete <= 2.9.9.0 - Authenticated (Contributor+) Stored -
CVE-2026-93922
SiYuan through 3.8.4 Stored XSS via notebook names
V. Comments for CVE-2026-89081
No comments yet