Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-12483— LearnDash LMS <= 5.1.5 - Authenticated (Subscriber+) Arbitrary File Upload via Assignment Upload Handler

Quick assessment

Affected
StellarWP LearnDash LMS
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.

stellarwp LearnDash LMS是stellarwp公司的一款内容管理系统中的学习管理插件。 stellarwp LearnDash LMS 5.1.5及之前版本存在任意文件上传漏洞，该漏洞源于'learndash_fileupload_process'函数对输入验证不足，仅验证数组中的第一个文件，导致已认证攻击者（订阅者级别及以上且已启用作业上传的课程成员）可上传任意不允许的文件，包括PHP文件，若默认服务器配置允许执行，可能导致远程代码执行。

CVSS 7.5 · High EPSS 0.38% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
StellarWP LearnDash LMS ≤ 5.1.5 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-12483

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
LearnDash LMS <= 5.1.5 - Authenticated (Subscriber+) Arbitrary File Upload via Assignment Upload Handler
Source: CVE Program / CVE List V5
Vulnerability Description
The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the 'learndash_fileupload_process' function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server's wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
stellarwp LearnDash LMS 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
stellarwp LearnDash LMS是stellarwp公司的一款内容管理系统中的学习管理插件。 stellarwp LearnDash LMS 5.1.5及之前版本存在任意文件上传漏洞，该漏洞源于'learndash_fileupload_process'函数对输入验证不足，仅验证数组中的第一个文件，导致已认证攻击者（订阅者级别及以上且已启用作业上传的课程成员）可上传任意不允许的文件，包括PHP文件，若默认服务器配置允许执行，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
StellarWP LearnDash LMS 0 ~ 5.1.5 -

II. Public POCs for CVE-2026-12483

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-12483

请登录查看更多情报信息。

Vendor Pages for CVE-2026-12483 (1)

Other References for CVE-2026-12483 (1)

IV. Related Vulnerabilities

Same product: LearnDash LMS
Same vendor: StellarWP
Same weakness: CWE-434

V. Comments for CVE-2026-12483

No comments yet

Leave a comment