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Medium

Moodle provides calendar-event data without considering whether an activity is hidden

  • Disclosed: 13.05.2022
  • Updated: 11.10.2026 10:22

calendar/externallib.php in Moodle through 2.6.11, 2.7.x before 2.7.13, 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 provides calendar-event data without considering whether an activity is hidden, which allows remote authenticated users to obtain sensitive information via a web-service request.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package moodle/moodle < 2.7.13, >= 2.8.0, < 2.8.11, >= 2.9.0, < 2.9.5, >= 3.0.0, < 3.0.3 2.7.13, 2.8.11, 2.9.5, 3.0.3

References

CVSS score 4.3/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-200
Platform
Composer
Package
moodle/moodle
Disclosed
13.05.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-h8vc-v44p-5r2q - CC BY 4.0

Vulnerability history: moodle/moodle

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (437) in the archive
Total entries
437
First → latest
03.2021 02.2026
Without a fix
10
Exploited in attacks
0

Severity breakdown

  • Critical 16
  • High 68
  • Medium 318
  • Low 35

Disclosures per year

Severity:
  1. Moodle provides calendar-event data without considering whether an activity is hidden this entry
    Medium · 4.3 CVE-2016-2156 < 2.7.13, >= 2.8.0, < 2.8.11, >= 2.9.0, < 2.9.5, >= 3.0.0, < 3.0.3 2.7.13, 2.8.11, 2.9.5, 3.0.3
  2. Moodle has a Remote Code Execution risk via file restore
    High · 7.2 CVE-2026-26045 >= 5.1.0-beta, < 5.1.2, >= 5.0.0-beta, < 5.0.5, < 4.5.9 5.1.2, 5.0.5, 4.5.9
  3. Moodle Affected by Improper Restriction of Excessive Authentication Attempts
    High · 7.5 CVE-2025-67853 < 4.1.22, >= 4.4.0-beta, < 4.4.12, >= 4.5.0-beta, < 4.5.8, >= 5.0.0-beta, < 5.0.4, >= 5.1.0-beta, < 5.1.1 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  4. Moodle authentication bypass vulnerability
    High · 8.1 CVE-2025-67848 < 4.1.22, >= 4.4.0-beta, < 4.4.12, >= 4.5.0-beta, < 4.5.8, >= 5.0.0-beta, < 5.0.4, >= 5.1.0-beta, < 5.1.1 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  5. Moodle Cross-site Scripting (XSS) vulnerability
    High · 7.3 CVE-2025-67849 < 4.1.22, >= 4.4.0-beta, < 4.4.12, >= 4.5.0-beta, < 4.5.8, >= 5.0.0-beta, < 5.0.4, >= 5.1.0-beta, < 5.1.1 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  6. Moodle vulnerable to Cross-site Scripting
    High · 7.3 CVE-2025-67850 < 4.1.22, >= 4.4.0-beta, < 4.4.12, >= 4.5.0-beta, < 4.5.8, >= 5.0.0-beta, < 5.0.4, >= 5.1.0-beta, < 5.1.1 4.1.22, 4.4.12, 4.5.8, 5.0.4, 5.1.1
  7. Moodle affected by a code injection vulnerability
    High · 8.8 CVE-2025-67847 >= 5.1.0-beta, < 5.1.1, >= 5.0.0-beta, < 5.0.4, >= 4.5.0-beta, < 4.5.8, >= 4.2.0-beta, < 4.4.12, < 4.1.22 5.1.1, 5.0.4, 4.5.8, 4.4.12, 4.1.22
  8. Moodle vulnerable to brute-force password guesses
    High · 7.5 CVE-2025-62399 >= 5.0.0-beta, < 5.0.3, >= 4.5.0-beta, < 4.5.7, >= 4.2.0-beta, < 4.4.11, < 4.1.21 5.0.3, 4.5.7, 4.4.11, 4.1.21
  9. Moodle has an authenticated remote code execution risk in the Moodle LMS EQUELLA repository
    High · 8.8 CVE-2025-3642 < 4.1.18, >= 4.3.0-beta, < 4.3.12, >= 4.4.0-beta, < 4.4.8, >= 4.5.0-beta, < 4.5.4 4.1.18, 4.3.12, 4.4.8, 4.5.4
  10. Moodle has an authenticated remote code execution risk in the Moodle LMS Dropbox repository
    High · 8.8 CVE-2025-3641 < 4.1.18, >= 4.3.0-beta, < 4.3.12, >= 4.4.0-beta, < 4.4.8, >= 4.5.0-beta, < 4.5.4 4.1.18, 4.3.12, 4.4.8, 4.5.4
  11. Moodle allows unauthenticated REST API user data exposure
    High · 7.5 CVE-2025-32044 >= 4.5.0-beta, < 4.5.3 4.5.3
  12. Moodle allows reflected XSS via question bank filter
    High · 8.3 CVE-2025-26530 >= 4.5.0-beta, < 4.5.2, >= 4.4.0-beta, < 4.4.6, >= 4.3.0-beta, < 4.3.10 4.5.2, 4.4.6, 4.3.10
  13. Moodle has a stored XSS risk in admin live log
    High · 8.3 CVE-2025-26529 >= 4.5.0-beta, < 4.5.2, >= 4.4.0-beta, < 4.4.6, >= 4.3.0-beta, < 4.3.10, < 4.1.16 4.5.2, 4.4.6, 4.3.10, 4.1.16
  14. Moodle has an arbitrary file read risk through pdfTeX
    High · 8.6 CVE-2025-26525 >= 4.5.0-beta, < 4.5.2, >= 4.4.0-beta, < 4.4.6, >= 4.3.0-beta, < 4.3.10, < 4.1.16 4.5.2, 4.4.6, 4.3.10, 4.1.16
  15. Moodle has a SQL injection risk in course search module list filter
    High · 8.1 CVE-2025-26533 >= 4.5.0-beta, < 4.5.2, >= 4.4.0-beta, < 4.4.6, >= 4.3.0-beta, < 4.3.10, < 4.1.16 4.5.2, 4.4.6, 4.3.10, 4.1.16
  16. Moodle Remote Code Execution vulnerability
    High · 8.1 CVE-2024-43425 < 4.1.12, >= 4.2.0-beta, < 4.2.9, >= 4.3.0-beta, < 4.3.6, >= 4.4.0-beta, < 4.4.2 4.1.12, 4.2.9, 4.3.6, 4.4.2
  17. Moodle has CSRF risk in Feedback non-respondents report
    High · 8.1 CVE-2024-43434 < 4.1.12, >= 4.2.0-beta, < 4.2.9, >= 4.3.0-beta, < 4.3.6, >= 4.4.0-beta, < 4.4.2 4.1.12, 4.2.9, 4.3.6, 4.4.2
  18. Moodle ReCAPTCHA can be bypassed on the login page
    High · 7.5 CVE-2024-34009 >= 4.3.0, < 4.3.4 4.3.4
  19. Moodle CSRF risk in analytics management of models
    High · 8.8 CVE-2024-34008 >= 4.3.0, < 4.3.4, >= 4.2.0, < 4.2.7, < 4.1.10 4.3.4, 4.2.7, 4.1.10
  20. Moodle Authenticated LFI risk in some misconfigured shared hosting environments
    High · 6.5 CVE-2024-34005 >= 4.3.0, < 4.3.4, >= 4.2.0, < 4.2.7, < 4.1.10 4.3.4, 4.2.7, 4.1.10
  21. Moodle Authenticated LFI risk in some misconfigured shared hosting environments
    High · 6.5 CVE-2024-34002 >= 4.3.0, < 4.3.4, >= 4.2.0, < 4.2.7, < 4.1.10 4.3.4, 4.2.7, 4.1.10
  22. Moodle CSRF risk in admin preset tool management of presets
    High · 8.4 CVE-2024-34001 >= 4.3.0, < 4.3.4, >= 4.2.0, < 4.2.7, < 4.1.10 4.3.4, 4.2.7, 4.1.10
  23. Moodle Improper Input Validation
    High CVE-2024-33999 >= 4.3.0, < 4.3.4 4.3.4
  24. Uncontrolled Resource Consumption in moodle
    High · 7.5 CVE-2024-25978 >= 4.3.0, < 4.3.3, >= 4.2.0, < 4.2.6, < 4.1.9 4.3.3, 4.2.6, 4.1.9
  25. Cross-Site Request Forgery in moodle
    High · 8.8 CVE-2024-25982 >= 4.3.0, < 4.3.3, >= 4.2.0, < 4.2.6, < 4.1.9 4.3.3, 4.2.6, 4.1.9
  26. Moodle Code Injection vulnerability
    High · 8.8 CVE-2023-5540 < 4.3.0-rc2 4.3.0-rc2
  27. Moodle vulnerable to Server Side Request Forgery
    High · 7.5 CVE-2023-35133 >= 4.2.0, < 4.2.1, >= 4.1.0, < 4.1.4, >= 4.0.0, < 4.0.9, >= 3.10.0, < 3.11.15, < 3.9.22 4.2.1, 4.1.4, 4.0.9, 3.11.15, 3.9.22
  28. Moodle SQL Injection vulnerability
    High · 7.3 CVE-2023-30944 < 4.2.0-rc2 4.2.0-rc2
  29. Moodle's Mustache pix helper contained a potential Mustache injection risk if combined with user input
    Critical · 9.8 CVE-2023-28333 >= 4.1.0, < 4.1.2, >= 4.0.0, < 4.0.7, >= 3.11.0, < 3.11.13, < 3.9.20 4.1.2, 4.0.7, 3.11.13, 3.9.20
  30. Moodle SQL Injection vulnerability
    High · 8.8 CVE-2023-28329 >= 4.1.0, < 4.1.2, >= 4.0.0, < 4.0.7, >= 3.11.0, < 3.11.13, < 3.9.20 4.1.2, 4.0.7, 3.11.13, 3.9.20
  31. Moodle vulnerable to Cross-site Request Forgery
    High · 8.8 CVE-2023-28335 >= 4.1.0, < 4.1.2 4.1.2
  32. Moodle vulnerable to Uncontrolled Resource Consumption
    High · 7.5 CVE-2021-36395 >= 3.11.0-beta, < 3.11.1, >= 3.10.0-beta, < 3.10.5, < 3.9.8 3.11.1, 3.10.5, 3.9.8
  33. Moodle Session Fixation vulnerability
    Critical · 9.8 CVE-2021-36394 >= 3.11.0-beta, < 3.11.1, >= 3.10.0-beta, < 3.10.5, < 3.9.8 3.11.1, 3.10.5, 3.9.8
  34. Moodle vulnerable to Server-Side Request Forgery
    High · 7.5 CVE-2021-36396 >= 3.11.0-beta, < 3.11.1, >= 3.10.0-beta, < 3.10.5, < 3.9.8 3.11.1, 3.10.5, 3.9.8
  35. Moodle SQL Injection vulnerability
    Critical · 9.8 CVE-2021-36393 >= 3.11.0-beta, < 3.11.1, >= 3.10.0-beta, < 3.10.5, < 3.9.8 3.11.1, 3.10.5, 3.9.8
  36. Moodle SQL Injection vulnerability
    Critical · 9.8 CVE-2021-36392 >= 3.11.0-beta, < 3.11.1, >= 3.10.0-beta, < 3.10.5, < 3.9.8 3.11.1, 3.10.5, 3.9.8
  37. Moodle Improper Access Control vulnerability
    High · 8.2 CVE-2023-23923 < 3.9.19, >= 3.10.0, < 3.11.12, >= 4.0.0-beta, < 4.0.6, >= 4.1.0-beta, < 4.1.1 3.9.19, 3.11.12, 4.0.6, 4.1.1
  38. Moodle blind Server-Side Request Forgery (SSRF) vulnerability in LTI provider library
    Critical · 9.1 CVE-2022-45152 >= 3.9, < 3.9.18, >= 3.11, < 3.11.11, >= 4.0, < 4.0.5 3.9.18, 3.11.11, 4.0.5
  39. Moodle Cross-Site Request Forgery (CSRF)
    High · 8.8 CVE-2022-2986 >= 3.11, < 3.11.9, >= 4.0, < 4.0.3 3.11.9, 4.0.3
  40. Moodle Minor SQL injection risk in admin user browsing
    Critical · 9.8 CVE-2022-40315 >= 3.9, < 3.9.17, >= 3.11, < 3.11.10, >= 4.0, < 4.0.4 3.9.17, 3.11.10, 4.0.4
  41. Moodle remote code execution
    Critical · 9.8 CVE-2022-40314 < 3.9.17, >= 3.11, < 3.11.10, >= 4.0, < 4.0.4 3.9.17, 3.11.10, 4.0.4
  42. Moodle Stored Cross-site Scripting and page denial of service
    High · 7.1 CVE-2022-40313 >= 3.9, < 3.9.17, >= 3.11, < 3.11.10, >= 4.0, < 4.0.4 3.9.17, 3.11.10, 4.0.4
  43. Moodle Incorrect Authorization vulnerability
    High · 8.8 CVE-2020-14321 >= 3.9.0-beta, < 3.9.1, >= 3.8.0-beta, < 3.8.4, >= 3.6.0-beta, < 3.7.7, < 3.5.13 3.9.1, 3.8.4, 3.7.7, 3.5.13
  44. Moodle PostScript Code Injection
    Critical · 9.8 CVE-2022-35649 >= 3.9, < 3.9.15, >= 3.11, < 3.11.8, >= 4.0, < 4.0.2 3.9.15, 3.11.8, 4.0.2
  45. Moodle Arbitrary file read when importing lesson questions
    High · 7.5 CVE-2022-35650 >= 3.9, < 3.9.15, >= 3.11, < 3.11.8, >= 4.0, < 4.0.2 3.9.15, 3.11.8, 4.0.2
  46. Moodle contains CSRF vulnerability
    High · 8.8 CVE-2021-43559 >= 3.11, < 3.11.4, >= 3.10, < 3.10.8, >= 3.9, < 3.9.11 3.11.4, 3.10.8, 3.9.11
  47. Moodle command execution vulnerability exists in the default legacy spellchecker plugin
    Critical · 9.1 CVE-2021-21809 = 3.10.0, = 3.11.2, = 3.8.0 no fix
  48. Moodle Arbitrary PHP code execution by site admins via Shibboleth configuration
    High · 7.2 CVE-2021-20187 >= 3.5, < 3.5.16, >= 3.8, < 3.8.7, >= 3.9, < 3.9.4, >= 3.10, < 3.10.1 3.5.16, 3.8.7, 3.9.4, 3.10.1
  49. Moodle Denial of Service
    High · 7.5 CVE-2020-25630 >= 3.9, < 3.9.2, >= 3.8, < 3.8.5, >= 3.7, < 3.7.8, >= 3.5, < 3.5.14 3.9.2, 3.8.5, 3.7.8, 3.5.14
  50. Moodle incorrect access control
    High · 8.8 CVE-2020-25629 >= 3.9, < 3.9.2, >= 3.8, < 3.8.5, >= 3.7, < 3.7.8, >= 3.5, < 3.5.14 3.9.2, 3.8.5, 3.7.8, 3.5.14
  51. Moodle vulnerable to RCE
    High · 8.8 CVE-2020-10738 >= 3.8, < 3.8.3, >= 3.7, < 3.7.6, >= 3.6, < 3.6.10, >= 3.5, < 3.5.12 3.8.3, 3.7.6, 3.6.10, 3.5.12
  52. Moodle Oauth 2 Insufficiently Protects Against Compromise
    Critical · 9.1 CVE-2019-14880 >= 3.7.0, < 3.7.3, >= 3.6.0, < 3.6.7, >= 3.5.0, < 3.5.9 3.7.3, 3.6.7, 3.5.9
  53. Moodle CSRF Vulnerability
    High · 8.8 CVE-2019-10186 >= 3.7.0, < 3.7.1, >= 3.6.0, < 3.6.5, >= 3.5.0, < 3.5.7 3.7.1, 3.6.5, 3.5.7
  54. Moodle all messaging conversations could be viewed
    High · 7.5 CVE-2019-10154 >= 3.6, < 3.6.4 3.6.4
  55. Incorrect Calculation in moodle
    Critical · 9.8 CVE-2022-30600 >= 4.0, < 4.0.1, >= 3.9, < 3.9.14, >= 3.10, < 3.10.11, >= 3.11, < 3.11.7 4.0.1, 3.9.14, 3.10.11, 3.11.7
  56. SQL injection in moodle
    Critical · 9.8 CVE-2022-30599 >= 4.0, < 4.0.1, >= 3.11, < 3.11.7, >= 3.10, < 3.10.11, >= 3.9, < 3.9.14 4.0.1, 3.11.7, 3.10.11, 3.9.14
  57. Moodle Unrestricted file upload vulnerability
    High · 8.8 CVE-2016-9187 >= 2.0.1, <= 3.2.1 no fix
  58. Moodle SQL injection via user preferences
    Critical · 9.8 CVE-2017-2641 >= 2.7, < 2.7.19, >= 3.0, < 3.0.9, >= 3.1, < 3.1.5, >= 3.2, < 3.2.2 2.7.19, 3.0.9, 3.1.5, 3.2.2
  59. Moodle Portfolio script allows instantiation of class chosen by user
    High · 8.1 CVE-2018-1137 >= 3.1, < 3.1.12, >= 3.2, < 3.2.9, >= 3.3, < 3.3.6, >= 3.4, < 3.4.3 3.1.12, 3.2.9, 3.3.6, 3.4.3
  60. Moodle SSRF Vulnerability
    High · 7.5 CVE-2019-6970 >= 3.5.0, < 3.5.4 3.5.4
  61. Moodle XML import of ddwtos could lead to intentional remote code execution
    High · 8.8 CVE-2018-14630 >= 3.5.0, < 3.5.2, >= 3.4.0, < 3.4.5, >= 3.2.0, < 3.3.8, < 3.1.14 3.5.2, 3.4.5, 3.3.8, 3.1.14
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