CVE-2026-112291— Flarum Extension Manager 2.0.0-beta.1 before 2.0.0-beta.8 Missing Authorization via Task API
Quick assessment
Affected
Flarum Extension Manager
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.
Flarum 扩展管理器（Extension Manager）2.0.0-beta.1 至 2.0.0-beta.8 之前的版本中，TaskResource 的 index 端点缺少身份验证和管理员权限检查，导致未授权的信息泄露。远程攻击者可向 发送 GET 请求，读取任务输出，从而获取文件系统路径、已安装扩展及其版本、以及 PHP 版本等敏感信息。
Possible ATT&CK Techniques 2 AI
T1592 · Gather Victim Host Information T1082 · System Information DiscoveryAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Flarum | Extension Manager | 2.0.0-beta.1< 2.0.0-beta.8 |
affected |
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I. Basic Information for CVE-2026-112291
Vulnerability Information
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Vulnerability Title
Flarum Extension Manager 2.0.0-beta.1 before 2.0.0-beta.8 Missing Authorization via Task API
Source: CVE Program / CVE List V5
Vulnerability Description
Flarum Extension Manager 2.0.0-beta.1 before 2.0.0-beta.8 lacks authentication and admin checks on the TaskResource index endpoint, allowing unauthenticated information disclosure. Remote attackers can send GET requests to /api/extension-manager-tasks to read task output revealing filesystem paths, installed extensions, versions, and PHP version.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 |
|---|---|---|---|---|
| Flarum | Extension Manager | 2.0.0-beta.1 ~ 2.0.0-beta.8 | - |
|
II. Public POCs for CVE-2026-112291
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-112291 (5)
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V. Comments for CVE-2026-112291
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