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CVE-2026-102580— Moodle: arbitrary class instantiation via report builder audience classname

Quick assessment

Affected
CVE-2026-102580
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 中发现了一个漏洞。经过身份验证的攻击者可以向 Report Builder（报告构建器）组件提供未经适当验证的受众类名，从而允许任意类的实例化。该漏洞可能导致未经授权地创建内部程序对象，进而引发应用程序的异常行为。

CVSS 2.2 · Low EPSS 0.24% · P13

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
None None 5.2.0< 5.2.2 affected
5.1.0< 5.1.6 affected
5.0.0< 5.0.9 affected
< 4.5.13 affected

I. Basic Information for CVE-2026-102580

Vulnerability Information
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Vulnerability Title
Moodle: arbitrary class instantiation via report builder audience classname
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in Moodle. An authenticated attacker can supply an improperly validated audience class name to the Report Builder component, allowing arbitrary class instantiation. This vulnerability enables the unauthorized creation of internal program objects, which may result in unexpected application behavior.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用外部可控制的输入来选择类或代码(不安全的反射)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- - 5.2.0 ~ 5.2.2 -

II. Public POCs for CVE-2026-102580

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-102580

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Patches & Fixes for CVE-2026-102580 (1)

Vendor Advisories for CVE-2026-102580 (2)

IV. Related Vulnerabilities

Same weakness: CWE-470

V. Comments for CVE-2026-102580

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