CVE-2026-123655— Moodle: missing access checks on h5p content files
Quick assessment
Affected
CVE-2026-123655
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.
在 Moodle 中发现一处安全漏洞：由于对 H5P 内容文件的访问控制检查不足，未认证的远程攻击者可以查看受限材料，包括存储在系统上下文中的内容，以及属于隐藏或不可用课程模块的文件。该问题导致受保护内容的非授权信息泄露。
Possible ATT&CK Techniques 1 AI
T1040 · Network SniffingI. Basic Information for CVE-2026-123655
Vulnerability Information
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Vulnerability Title
Moodle: missing access checks on h5p content files
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Moodle. Insufficient access control checks on H5P content files allow unauthenticated remote attackers to view restricted materials, including content stored in the system context and files belonging to hidden or unavailable course modules. This issue results in unauthorized information disclosure of protected content.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | - | 4.5.0 ~ 4.5.15 | - |
|
II. Public POCs for CVE-2026-123655
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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