CVE-2025-26531— IDOR in badges allows disabling of arbitrary badges
Quick assessment
Affected
Moodle Project moodle
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.
Moodle是Moodle开源的一套免费的电子学习软件平台，也称课程管理系统、学习管理系统或虚拟学习环境。 Moodle存在安全漏洞，该漏洞源于权限检查不足，允许用户禁用其无权访问的徽章。
Possible ATT&CK Techniques 1 AI
T1078 · Valid Accounts
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I. Basic Information for CVE-2025-26531
Vulnerability Information
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Vulnerability Title
IDOR in badges allows disabling of arbitrary badges
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient capability checks made it possible to disable badges a user does not have permission to access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Moodle 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Moodle是Moodle开源的一套免费的电子学习软件平台，也称课程管理系统、学习管理系统或虚拟学习环境。 Moodle存在安全漏洞，该漏洞源于权限检查不足，允许用户禁用其无权访问的徽章。
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 |
|---|---|---|---|---|
| Moodle Project | moodle | 4.5.0 ~ 4.5.2 | - |
|
II. Public POCs for CVE-2025-26531
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-26531 (1)
Vendor Advisories for CVE-2025-26531 (1)
Same Patch Batch · Moodle Project · 2025-02-24 · 9 CVEs total
| CVE-2025-26525 | 8.6 HIGH | Arbitrary file read risk through pdfTeX |
| CVE-2025-26530 | 8.3 HIGH | Reflected XSS via question bank filter |
| CVE-2025-26529 | 8.3 HIGH | Stored XSS risk in admin live log |
| CVE-2025-26533 | 8.1 HIGH | SQL injection risk in course search module list filter |
| CVE-2025-26526 | 6.5 MEDIUM | Feedback response viewing and deletions did not respect Separate Groups mode |
| CVE-2025-26527 | 5.3 MEDIUM | Non-searchable tags can still be discovered on the tag search page and in the tags block |
| CVE-2025-26528 | 3.4 LOW | Stored XSS in ddimageortext question type |
| CVE-2025-26532 | 3.1 LOW | Teachers can evade trusttext config when restoring glossary entries |
IV. Related Vulnerabilities
Same product: moodle
Same vendor: Moodle Project
-
CVE-2025-26533
SQL injection risk in course search module list filter -
CVE-2025-26532
Teachers can evade trusttext config when restoring glossary -
CVE-2025-26530
Reflected XSS via question bank filter -
CVE-2025-26529
Stored XSS risk in admin live log -
CVE-2025-26528
Stored XSS in ddimageortext question type
Same weakness: CWE-863
-
CVE-2026-71890
MLS external commit can remove an arbitrary group member -
CVE-2026-71886
OpenPGP certification accepted from a subkey without certifi -
CVE-2026-105090
Formbricks <6.0.1存储型XSS漏洞 -
CVE-2026-104873
LangGraph SDK custom auth silently ignores actions= on resou -
CVE-2026-103626
Chrome <154.0.8037.97 文件系统权限验证漏洞
V. Comments for CVE-2025-26531
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